Okay, so let me reintroduce again the paper. So the paper is highly efficient OT based multiplication protocols. This is a paper from If-Touch-Hatner, Nicholas Macriannis, Samuel Rinalucci, and the Eliad Tsvadia. So, and Nicholas will give the talk. Hello, hello, okay, it's working. It's okay. Okay, so let's start. Hi, I'm Nicholas. I'm here to talk about the highly efficient OT based multiplication protocols. This is a joint work with If-Touch, Samuel and Eliad. So we're gonna look at the problem of two-party multiplication, which we defined as follows. So two parties, P1 and P2 holding inputs X and Y respectively, wanna calculate additive shares of the product of their inputs. So the functionality takes X and Y from each of the parties, and it returns random S1 and S2, such that S1 plus S2 is equal to X times Y. So in this talk, I'm gonna focus on the field of integers modulo some large prime Q, but our results extend to any field of odd characteristic. Okay, so why is this an interesting problem? So two-party multiplication is important both theoretically and practically. So first two-party multiplication is the fundamental building block in arithmetic 2PC. It holds a role analogous to that of OT in Boolean MPC. So right now I'm assuming some familiarity with OT, Oblivious Transfer, but I am going to define it later on. So in particular, multiplication protocols are used extensively to generate beaver triplets and authenticated triplets. That is correlated data for general purpose MPC. I will remind you that these triplets allow for fast information theoretic MPC because all of the cryptography and most of the computation has been pre-processed in the multiplication protocol. Another application, and perhaps the main motivation of this work is for realizing threshold ECDSA. So the ECDSA scheme is arguably the most popular signature scheme in the blockchain space. And there are many companies, including the one I work for that are offering MPC signing commercially. So we can use MPC to thresholdize ECDSA, sorry, that's not a word. And since ECDSA is simply a shallow circuit over ZQ, the resulting protocol can benefit from a highly efficient multiplication protocol over ZQ. Right, so finally, if you're familiar with the OLE functionality, let me mention that multiplication is almost the same functionality as Oblivious Linear Evaluation. The two are essentially equivalent with very small overhead and all of the above holds true for the OLE functionality as well. Okay, so let's dive into the fun stuff. There are several paradigms for realizing two-party multiplication, roughly falling into one of two categories. So there are protocols based on homomorphic encryption, like Palais encryption, and there are protocols based on Oblivious Transfer. This is a very rough picture. For the most part, protocols based on homomorphic encryption have good communication, but they can be quite expensive in computation, and they also require stronger assumptions that is stronger than what is implied for general secure computation. On the other hand, protocols based on Oblivious Transfer use minimal assumptions because they use an MPC Complete Primitive. And they have good computational complexity. However, they can be quite expensive in communication. So to illustrate, for multiplying two 32-bytes values, current protocols require tens to hundreds of kilobytes of communication depending on the target security. Okay, so in this protocol, we present a new OT-based multiplication protocol, and the main challenge was to improve the communication complexity. Good, so before I give more background on OT and OT-based protocols, I wanna quickly define what an OT-based protocol is. So simply put, a protocol is OT-based if the only underlying cryptographic primitive it uses is the OT. So slightly more formally, we define protocols in the OT hybrid model where the parties have access to an oracle calculating the OT, the Oblivious Transfer. So I will remind you that OT takes two inputs from the sender and one bits from the receiver and it delivers that value indexed by the bits to the receiver. Good, so it goes without saying that protocols in the OT hybrid model give rise to protocols in the sender model by simply replacing the oracle call with a secure protocol for OT. Right, so complexity costs in this model are broken down as follows. So we have the usual suspects of computation communication around complexity, but we also wanna keep track of the following. So on one hand, we have the number of oracle calls to the OT, but also the size of the input of the sender, so the size of disease. This metric, so the size of disease is important because the longer the inputs in the OT, the more data has to be communicated when compiled in the plain model, okay? So in the rest of the talk, I'm gonna refer to this cost as a communication cost even though this is a misnomer in the OT hybrid model. Good. Okay, so what do we know about OT-based multiplication? So as far as we know, I mean, as far as I know, there are two templates for OT-based multiplication, one by Gilboa and one by Ishai and others. So Gilboa's protocol achieves better performance with only log Q, OT calls and communication. Both protocols only achieve semi-honest security. Gilboa's protocol can be compiled, I mean, both protocols can be compiled, but Gilboa's protocol can be compiled for malicious security, but not cheaply. And the protocol of Ishai and others admits a malicious variant under a non-standard assumption. Good, so let me turn to our results. Okay, so we present a new protocol in the OT hybrid model. Our protocol is almost maliciously secure in that it achieves a high level of security out of the box. In the next slide, I will explain exactly what this means. Furthermore, our protocol admits a batching variant for computing many multiplications when one party is using the same input for each instance. The batching variant of our protocol is more efficient than simply repeating the base protocol beta times. For malicious security, our protocol can be compiled very cheaply, both for the single instance case and the batch variants. And our protocol offers an X2 improvement in communication compared to the state of the art. So to elaborate on the first items, the almost maliciously secure. In the paper, we show the following theorem. So let me state it informally before I startle you with the formulas. So intuitively, depending on the adversary, we show that either the protocol is fully secure or the honest party is utterly unpredictable in an interesting way. So slightly more formally, our protocol exhibits the following dichotomy. Either the protocol can be simulated in the ideal model with two to the minus cop over four statistical closeness or the honest output has entropy, mean entropy, at least cop over four, given both the adversary's view and the honest party's input. This means that the output is highly unpredictable under attack, even if the adversary knew the input. So in the batching variant of our protocol, we show that each of the honest outputs are either well formed or they are unpredictable given all of the honest party's inputs. So in the paper, we formally define this, our predictability notion via a functionality that we call weak malts. And in the next slide, I will argue that weak malts is useful in its own right. Good, so turning to applications, right away, I wanna stress that this unpredictability notion is very useful for obtaining malicious security. It suffices to perform a single check to verify for correctness and to detect malicious behavior. What's more, this check can be very simple. For instance, in a Q-order group generated by G, it suffices for P1 to check the displayed inequality. So I'm assuming here that the group elements are public and they are well formed. This assumption may seem restrictive, but this check can be generalized to arbitrary settings very cheaply. I'm not gonna elaborate on this, but feel free to ask me later on. Good, furthermore, for certain protocols, it is enough to realize the weak malt functionality because correctness checks, like the one I just described, are built into the protocols. For example, in the threshold ECDSA of Lindel and Noth, the parties are instructed, the parties are instructed, what are the parties instructed? Okay, I have a typo, nevermind. So the parties are instructed to check the output in an oblivious way. And therefore, our protocol can be used as is in the threshold ECDSA protocol of Lindel and Noth. Right, so finally, the batching variant of our protocol is useful for generating beaver triplets and authenticated triplets in the pre-processing models. Good, so I'm gonna conclude the first part of my talk with a comparison to previous works. So our protocol prescribes N calls to the OT where N is log Q plus a statistical parameter kappa. Our protocol prescribes half as many OT calls as other maliciously, not OT calls, communication compared to other maliciously secure protocols. And in the batching variant for batches of size beta, our protocol scales with log Q rather than N. And so we only pay for the security parameter once rather than for each instance. So effectively, our protocol achieves the same amortized cost as Gilboa's protocol while achieving full security instead of simply semi-honest security. Good, so right, so in the remainder of the talk, I'm gonna give you the technical overview. So first I wanna introduce the following notation. So I'm gonna denote vectors with boldface letters and the coordinates with non-bold letters. So for the inner product, I'm gonna use pointy brackets. And I will write U star V for the point-wise product of two vectors also known as the point-wise product also known as the Hadamard product. So U star V is a vector. Okay, so let's have a look at the protocol. So the protocol consists of two phases. In the first phase, the parties make N parallel calls to the OT. So N parallel calls as follows. So party P2 samples values in minus one and one and it uses those values as inputs to the OT. Let me stress that I'm switching conventions between Boolean zero one for the input bits to minus one one. Right, so party one samples Delta, samples N field elements and playing as the OT sender uses inputs plus X and minus X, which is masked by the same value Delta and a different Delta is used in each OT call. So the OT call concludes with the receiver obtaining the value Zi from the functionality. Good, so in the second phase of the protocol, P2 samples a random vector V such that the inner product of T and V is equal to its input and it sends that vector to P1. At this point, the protocol concludes and the parties output the following. So P1 outputs the inner product of Delta and V so that the randomness it sampled and the vector it received and P2 outputs the inner product of Z and V so the output from the OT and the vector it sampled locally. So the sum of the outputs gives you the desired result because of the following calculation. So Z minus Delta is equal to X times T, the X comes out of the inner product and T inner product with V is equal to the input Y. Good, so that was the protocol. What about security? So the first thing to notice is that this protocol is fully secure against the corrupted P2. Indeed, the only way P2 can deviate is by sending a different vector V. However, this behavior is equivalent to choosing a different input. And so this execution for a corrupted P2 can be simulated in the ideal model by simply extracting the right input. The interesting case is what happens when P1 is corrupted. So the problem with P1 is that it may use inconsistent inputs in the OT. Specifically, instead of using well-formed inputs, values across the different OT calls, P1 may use inconsistent values. The result is in the security analysis that there is no well-formed input for the corrupted party. And this execution cannot be simulated in the ideal world. So this is where I dichotomy theorem comes into play and now I'm gonna dive into the nitty-gritty of the analysis. So it's easy to show, easy, I mean, it's easy if you write it down, that the honest output is offset by some value V star T, inner product with D, where D is the smallest value in this set. I mean, what this set is is not very interesting, but intuitively what this means, what vector D is, is that it captures how much A deviates from the protocol because it is the smallest shift to the inputs which would yield well-formed values. So I will spare you the elementary algebra and I'm just gonna say that if D is very close to zero, then, or if D is the zero vector, then the party behaves honestly. And if D is very far from zero, then there are many inconsistencies in DOT. Good, so we show that when D is close to zero, then the offset and the inputs are two to the minus cap over four close to independent. And we leverage this fact to show that this execution can be simulated in the ideal world with two to the minus cap over four statistical closings. On the other hand, if D is far from zero, then we show that the offset has mean entropy, sorry, cap over four given both V and Y. So the reason this is true is because there is a huge number of T's, so vector T's for any fixed V and Y. And to show this result, we use a third moment concentration and equality. And the reason we go to the third moment is because we wanna match the target security from the first case. Good, so before I conclude, let me just present the batching variant of our protocol. I will describe it by comparing it to the single instance case. So here, party P2 has many inputs and the parties wanna calculate shares of each of the multiplications of X with Y, I. So the first phase of the protocol is very similar to the single instance case, except that now the parties make many more calls to the OT, how many more? So the number N depends on the batch size and the parties are required to call the OT an additional log Q times. An additional log Q times. Okay, I don't have a lot of time, but okay. So in step two, P2 samples a fresh V for each of these inputs. So a new vector and it sends those vectors to P1. The protocol terminates and the outputs are defined analogously to the single instance case. Good, that was the batching variant. So let me summarize very quickly and conclude. So we present the new OT-based protocol. It is sufficiently secure for some applications. It is almost as efficient as the best performing state-of-the-art semi-honest protocols in the batching variant. And in the fully malicious variant, it is twice as efficient in communication compared to the state-of-the-art. Some open questions to conclude. So can we push the efficiency further? Can we go beyond Gilboa's log Q, OT times log Q communication? Can we show that the IPS protocol realizes weak mulch? So that was the original question that we tried and failed to answer. And finally, what about lower bounds? Maybe OT multiplication is inherently wasteful in communication. Maybe Gilboa's barrier is unavoidable. Thank you. Thank you very much. Do we have any question? Good, thank you very much for a very nice talk. Just a small question that as you have highlighted in your construction, the corrupted P1 scenario as well, you have discussed it. Sorry? You have discussed the corrupted P1, party 1 parameters in your construction. So my question is that have you considered the applicability of the MITM in your construction? Of the MIT? Of the what? Yes, man in the middle. Ah, man in the middle. I'm, yes, I'm not exactly sure what you mean by that. I said that because you're calculating multi-party protocol. So you're, during the construction, while evaluating the vulnerabilities or its weakness, have you considered the MITM attack on this? So we have not considered that. And the other thing is your construction can be a base of a new secret sharing scheme or it can be used? If it can be based on a new secret sharing scheme, maybe, yes, maybe. Thank you. Any more question? In the meantime, I do have a question actually. So you said that when you showed the efficiency of your protocol, you said that it's in the random-oracle model, right? Yes. Right? Where do you need the random-oracle? So I need the random-oracle model because without the random-oracle, I need to pay for communication for all of these vectors I'm sending outside of the OT. But these vectors are just random. So I could just send a succint representation, like a succint seed through the random-oracle instead of sending all of those vectors, the Vs, basically. But I suppose you need to use sample also using the random-oracle, right? Those seeds. Or why can't you use, for example, a PRG and send short seeds over the channel if that's the problem? If I can say, because a PRG would like, so I can't send the, no, a PRG wouldn't be random enough, no, if I send the seed. It depends who samples the seed, I mean, like. Yeah. If it's the honest party that samples the seed, I mean, it should be fine, right? I see, okay, yes, good point. Right, maybe, maybe, yeah, maybe you can get away with it if you, right. Anyway, okay, maybe, yeah, we can discuss. Any more question? No, okay, so let's thank the speaker again. Thank you very much. Thank you. All right, so the next talk will be recorded. So are we ready for the, yeah. So the next talk will be practical non-interactive publicly verifiable secret sharing with thousands of parties.


The Baxter City Council has approved the plans for the new businesses off of Edgewood Drive. Sarah Winkelman spoke with the development director to get the latest on the new concept store and other plans. For those who frequent Edgewood Drive, it is clear that change is on the way, but up until now it has been unclear what changes can be expected. Aspen Dental and Caribou Coffee will be housed in the newest building on Edgewood Drive. But as for the lot next to it, the development director wants to put to rest any rumors of a new building. There are parking lot modifications because Camping World being part of the application includes outdoor display of recreational vehicles. Those RVs from Camping World will be displayed in what is now the empty lot. The original Gander Mountain building will not change much on the outside except for some new paint, but the inside will be transformed into a new concept store including Gander Mountain, Overtons and Camping World. We're excited that they were interested in Baxter, you know and so the fact that they were interested in in our market to locate their new concept store is certainly exciting. It's a change that will be of great benefit to the community. Not only from a retail standpoint, but also from a tax-based standpoint as you know we were looking at the alternative of having an empty building and now a building that was only partially occupied is going to be fully occupied and with retail opportunities that didn't exist eight months ago. The project has no official start date at this time, but they could begin as early as spring of 2018. The entire process isn't expected to last too long, but with a large emphasis on pedestrian safety there will be additional construction. There's a great deal of improvements that will be made as part of this site that would include sidewalks that would connect pedestrians all the way from Clearwater Road through this development site all the way down to Cub Foods and Excelsior Road and then also from the Gander Mountain Building back towards Edgewood Drive as well. The community of Baxter will soon see the change from an old store to a new shopping experience. Reporting in Baxter, Sarah Winkelman, Lakeland News. Aspen Dental is planning to open next week with Caribou Coffee opening just a short while later. If you've enjoyed this segment of Lakeland News, please consider making a tax-deductible contribution to Lakeland Public Television.


There's a lot of material actually you need to build and use the BMS and probably the best starting point is really the in excess website where you click on the material button at the top and then you can click on the battery management system and get to this page which provides the summary of all the links that are required for the BMS and the most important ones are the to the firmware repository and to the hardware repository. These are all hosted on github so you can post your issues or send pull requests and yeah the page for the BMS hardware for example looks like this provides a really draft overview of what the BMS is and contains lots of links to the documents required to understand the BMS and get started with it. So one is the PDF file of the schematic. There is of course also the native chiCAD file which you can use but a PDF is easier to access if you just want to have a short look and we've got the bill of materials as a normal CSV file and an interactive bill of materials which I will show in the next slide and a link to the firmware repository and the manual and some mechanical design files as well. The user manual which is also linked in the previously shown page contains all the information you need to integrate the battery the BMS into a battery pack for example here it shows where to connect the chargers or the loads where to connect the battery cells in this connector and the temperature sensors and it contains lots of other information how to use it. Then this is this interactive html bomb I just mentioned it's an export from the chiCAD program and it's really useful if you want to build the BMS or also if you want to have an understanding of what the components on the BMS are. So you get this bill of materials at the left side and you can click on those lines and then it shows you it highlights the parts on the right side corresponding to the entry in the list and this really helps for manufacturing and understanding. Then there is the firmware github repository you can of course have a look into the source code itself but maybe as a starting point it would be best to look into the render documentation which is linked at the top right corner here and this will bring you to another website which looks like this and it shows the basic features of the BMS firmware it shows how to set up the workspace based on the zephyr RTOS and also shows you how to flash the firmware and at the very bottom you see the API reference where you can see the different functions and how to call them so that you can get an easier understanding of the firmware and last but not least the communication protocol we are using it's called Thinkset and it's the same protocol that we use for the serial interface and for Bluetooth and it can also easily be integrated into the internet and cloud infrastructure via MQTT. It's all documented in the Thinkset.io website and yeah the basic concept is that you send some JSON data from the device or to the device and with this data you can configure the BMS for example you can set different voltage thresholds for over voltage or under voltage and so on and you can read out measurement values basically do everything you need to interact with the BMS and for doing that we also provide an open source mobile app that's developed in Flutter you see the link down below but it's not so this app is still in progress it works with and I've only tested this with Android so far but yeah there will come some more advanced features in the future currently it's efficient to set the threshold and get some voltage measurements and so on but it will be improved in the future.


Welcome back everyone to another episode of Let's Play, Dragon Quest 11S Definitive Edition on Nintendo Switch. Last episode we went off and searched for the Rainbow, we boarded Silvando's ship and made it to Octagonia where the Rainbow supposedly was brought over to. So we're going to explore Octagonia a little bit, find out what's going on here. And there's Silvando's ship as you can see. We managed to save Eric last episode and feed Jasper, which is a good episode. I gotta say, the long loading screen, but okay. Alright, so we're back here in Octagonia. The entire area is covered up from the top to bottom. It's sort of an arena area. So let's look around. Here's the end it looks like. Okay, there's the bank. 1000 gold. Services are complimentary. What's the point of the services being complimentary if there's no money? How did they run the bank? Is it just like an attraction for the inn? And there's one room here. Well there's only enough beds for two of us. Serena and Veronica go out to share one, it looks like. I mean Eric go out to share one. Oh, there's another taco right here. Haunting me. Feathered cap. Secretly nails good here. Okay, checking more stuff out. It's a very it's a large area. A lot to explore. Oh, what's this? Everyone's surrounded around something. A prize for this year's tournament is the best ever. They say the mayor broke the bank to buy from some traveling merchant. I wonder if it's what I think it is. He's an expert on female fighters. Oh my goodness. So he's a little bit of a prize a lot. What is this? That's it. Round the win it of course. We're going to enter the tournament. That's one of the prizes. And whatever this thing is. The second prize in the MMA tournament. A golden sphere. But this, the rainbow, which will be the first prize. It gives off a mysterious glow. One third hand to the ring. You're counter right. This is a registration desk. Each prize is between two pairs of fighters and everybody who has to wear a mask. Fighters are paired off at random. And what makes it fun is the luck of the draw. Okay. The best prize is the rainbow. Yeah, sure. We'll sign up. I've got a number. So let's see.  He's number 11. Get it because it's Dragon Quest 11. That's why it's number 11, right? I see what they're doing. Head up on the third area, the third level. The elevator behind him, that'll take me there. Hi. I just don't get what's so special about it. It just looks like a fancy branch. The second prize. That yellow orb. It's worth a lot of money. Wait a minute. Is that similar to the red orb that we own? Right? There's a yellow orb and then there's that red orb too. Hello? What are they talking about? Yeah, I got my mask and draw number.  Not enough for a fighter to kick the butt in the arena. You gotta look good while you're doing it. Skincare. My skin's really smooth. It looks like that area is closed. I wish I could go down there. Is there any way to head down? Oh, there is. Maybe we can explore a little more. Oh, there's a dog. Always barking. Oh, this must be somebody's house. Alright, we'll explore this house and then we'll go register for the Octagonia match. You gotta make sure to check everywhere to see if there's any good stuff. This is kind of like stealing a garter. Who could wear that? Can she wear it? Garter. Uh, wow. Leggy lingerie. She sure raised an eyebrow or two. Okay. Oh, this woman just saw me steal her stuff. Her underwear. Her husband's off. Oh, well, I just robbed his house while he's gone. So, let's just deal with that now.  We can explore later. There really should be going on to the elevator. I was a priest. Some weird stuff's been happening to fighters lately. Everybody keeps talking about it. That's interesting. I'm sure it's nothing, though. Where's the elevator? Oh, here's the elevator entrance right here. And we're off. Got a mask? Yep, I'm ready to go. It's almost time for the fight. Oh, I should have healed up actually at the inn, but I guess... I guess maybe I'll heal up automatically. Alright, so we're in the arena waiting room. Oh, and here's the healing area. Give my sword a few more swings. Oh, he's getting nervous. Let's rest for a while to get everyone healed up. Okay, so, hello. The partner draw is hopping in the arena. I just head up the stairs. Okay, here we go. This is... Hopefully we can win this tournament so we can get that rainbow because we need that thing. I'm really excited for this. Look at everybody in the background all cheering. Hopefully I end up with one of my teammates. That would be nice. We can team up together. So, I'm the first fighter, huh? Number 11. Hopefully somebody good, like Eric or somebody. Number eight. Oh, hello there. So, that's my partner, huh? She's not bad, but... Who's this guy? What does he have to say? Unless he's fate in the hands of a Bali who like you and your box of balls. Your box of balls! I really wonder what he said to him to convince him. Like, yeah, he said something to, like, convince him. What did he say to him? I really, like, I'm curious what he said.  Who's that? Oh, wow. Look at him. Vince. Vince Vanquish. So, he's last year's champion. Yeah, it's nice to meet you too. The draw continues and everybody's paired off. Okay, so we're teamed up with Vince Vanquish, the champion from last year. That's actually looking good for our favors. We might win with him on our side because if you won last year, you must be really tough. Who does this guy say? Another draw is over. It's time for the fight to begin. We're not quite ready though, so reinstall.  Okay, sure. I'll rest up. I wonder what he's thinking now. A lucky guy again paired with Champ. Well, I guess we could go back into here, right? Another draw go. Got a pretty good partner. Oh, free in stay. Let's go rest at the end. That's very nice of them to give me a complimentary hotel. Alright, where's the others right now? Can I talk to them? We got lucky back there again. Paired last year's champion. Well, you know what this means, right? Now you have to win this thing. Let's make the rainbow ours. So, me, Sovando, and Erica are all going to enter the tournament. I saw how everyone got paired up and he was going to get a good one. Oh, he's got surprise in store for me.  So, I'm going to go up against my own friends. We're Serena and Veronica though. They're not going to fight. Well, they are magicians as long as they would. Oh, there she is waiting for us. Hello. She's trying to flatter me. Where Veronica go? Oh, fighting somebody again. No, he did not just call her that. His name is the underdigger. I forgot his name was underdigger. That's hilarious. The underdigger. He's always got his eyes closed also. Kev. Because you run off to see Kev now. Yeah, I know her. She's got kids. So, me and Vince are going to train in the morning. We're like bros now. Where's Veronica? And you go see her. The eight teams that make it through the first round and fights and losing teams getting knocked out. Alright, interesting. If you're taking part, she's hoping I have a great tournament. Thanks. Let's explore Octagonia a little bit. Why not? Oh, here we go. Some weapons and armor. Which means it's time to get more tougher. This is the weapon shop. She's got a lot of weapons around here. Alright, so let's see what we got here. What goods. Oh, wow. That'll make me tough. Another thing is I don't need to worry about anybody else besides myself because I'm entering this tournament alone and I'm going to be going up against Erick and Silvando. What if I unequip Erick and Silvando for when I decide to fight them? Because I know I'm going to fight Silvando because I already beat the game last year. So, Silvando, maybe I should just unequip everything he's holding. That way he'll be super easy to beat. Wouldn't that be funny? That might work, right? A lolly stick. She could use that. But for the purposes of this, I should use a steel broadsword and I should rework it. Yeah, let's equip that. A black blade. It was pretty tough. I heard about this. This thing is better for me. Okay, so we have to steal this broadsword now. We should check what kind of armor we can get now. Okay, so gold platter. That's actually tougher than what I've got. A steel iron shield, a stone helmet, feather helmet, a headband. Oh, wow. These are all really good.  Oh, wait. I can give that to Erick. Couldn't I? Okay, what I'm going to do is I'm going to have Erick equip the broadsword plus three. Okay. Alright, not bad. Now I'm going to sell the broadsword plus two. Make some money off of that. Selling that. Selling that. I don't need that anymore. I don't need that anymore. I don't need that anymore. Sell that again. Sell that. Oh, there's only one of these in the whole game. Maybe I shouldn't sell that one. Okay, so we have some cash now. Now we have enough cash for iron shield, which will give us 65, and then there's the iron helmet, which will give us 110, and then there's the iron armor. So I think the iron shield would be good first. I'm going to equip that. Sell my scale shield. I can't sell for much though. What else can I sell to this guy? Hitch pearl, glass frit, moonward bulb. I'm looking to see what I could sell. I could use that for alchemy, but I don't know. There's probably more yellow eyes in the world. I guess all this stuff to be honest. Gold ore. Wait, how much can I sell a gold ring for? I want to check to see how much I can sell the gold ring for because 960. Let's try something. We're going to go into the into... where's the forge? The fun size forge. Fortan items. The fun size forge should be here. There we go. Alright, so let's get cracking. I level up. Maximum focus, double-edged bash. Lightning bash. Oh, there's some good bashes here. So what we're going to do is rework an item. We're going to rework the steel broadsword to make it stronger. Seven perfectionist pearls. Okay, hopefully we can make this thing tougher. Now let's see, flourishes. We have this double-edged bash, which you can make us do these both at the same time. But for now I'm going to bash that once. Double-edged bash. Try this one more time. Okay, not bad. Hopefully I have enough to do this. One more should do it. Nice. Really well. And there's not enough... I don't have enough focus. Alright, we'll finish this up. Hopefully that should be enough to make it stronger. Nice. Oh, plus two, that's good. And we'll forge an accessory. We'll forge a ring. Actually, we can make gloves. Any cotton top for that? Let's see, ring. Gold ring. That will increase my defense a lot. Alright, let's do that. Okay, so far so good. Left one, the right one. Nice. Okay. Brilliant. Nice. This ring should work really well. Perfection. See that? A gold ring plus three. That'll give me a lot of defense. Time to leave. Alright, now we'll change our equipment. Give myself that gold ring plus three. Increases the defense drastically. Chain mail. If I sell chain mail, would that be enough? I need that iron armor to give myself a lot more defense. Actually, I might as well sell all the savandos crappies we're holding because I'm not going to be using him. And I might as well sell that one too.   Alright, let's sell that. Sell that birchwood boomerang.  What else could I sell? I could sell a gold ore, but I wouldn't be making my money off of it. The iron helmet will make my defense, but the iron armor will make my defense even higher than that. Alright, I should sell, I should sell whatever helmet I was wearing at the time. And I was wearing the feather cap. What other good stuff can I sell? I could sell Eric's sword and his feather cap. That'll work really well.  Barkley sap, gold ore, lamp light, seed of skill. I need that. Yellow eye, royal soil, itch pearl. Okay. If I had that more armor, I'd probably be even tougher. Wait, how much can I sell my current armor I'm wearing for? Not much. Not much it looks like. That should be good for now. I think I should be tough enough to defeat my enemies at this point. Definitely improved everything. Ah, the church. I got the biggest collection of fighter autographs. That's impressive. Why is there a kid here? Uncle Men said he'd make a good priest. Alright, I like to save. Yeah, I'll save here. Is Vince around here? He said he sleeps here, right? The door's locked. That's Vince's room, by the way, just so you know. He lives in the orphanage, because this is where he grew up. What are these kids doing? Are they fighting? Oh, they want to pretend to be... Everybody thinks it's a little mad. Okay, these kids are fans of him. Hello? Now, he's born in the orphanage. That's why he looks after the kids there. What does this guy have to say? Okay, so this place is just full of hot headaches. What are they talking about? Best eats in the house, guaranteed. He's selling his tickets. Oh my goodness. This guy's so gullible. Don't mind me just barging into your house. Nobody's here, so it's not like anybody cares. Open this door right here. Nope, nothing here. Smash some pots. All right, let's head on over and do this octagonia thing. I think I'm tough enough to defeat them now. Got my steel broadsword plus three. Right, and we're almost there. Oh, I was supposed to sleep at the inn. Forgot. My complimentary living arrangements. Hello? Vince's knee partner is here. Said you would wake you up in a time for a first fight. Yeah, I'm ready to turn it for free. Yeah, nothing like a free hotel room. That was nice of him waking me up early. Rise and shine, partner. These are some other contestants. Did you hear about the fighters going missing? I heard they all got kidnapped. Fighters who can kidnap other partners. Zapp, Woosh, Biff, Pow, got it. Biff, Pow, that's a Batman reference, isn't it? Free fight prayer. He's a priest.  That's pretty impressive. Good thing for saving for me. He's a priest. All right, let's head on out. Let's head outwards. All right, Vince, let's go. All set. Smash some heads. The Abominable Showman. That's good. So those two guys, those are our opponents. Bleeding, stinking, like stinking wool. He always says bleeding, stinking. Oh, it's bleeding, stinking luck. And then all the girls are gonna be stoned in. Look at his tongue. His tongue is like just sticking around out. Let's get ready for this music. Listen to this music. The orchestra. This is the Dragon Quest IV battle theme. Oh, the Underdigger has a little character portrait. All right, it's kind of funny that they're unarmed and we got weapons and we're gonna attack them with them.  Oh wow, Vince is doing a pretty good job. I love this theme song, this battle theme. All right, I don't have a lot of abilities for pumping myself up, but I do have this. Who should I attack first? The Abominable Showman or the Underdigger? I think the Showman might be weaker. I thought they were gonna attack me and not, not Vince. Didn't they say that? Yeah, they're wasting their moves on him. All right. Okay, I'll keep going at him. Vince basically has unlimited HP. Nice job, Vince. Oh, he pepped up. Whoa. He can create doppelgangers himself. I could. Wait, wait. I can do the deal with this. Oh, they're both pepped up now. So they have a pep move.  That was nice of him. Oh, that was not nice. Gotta heal myself. Damn, okay. Hey, attack those. Those guys are in pain. They are a huge pain. I'm gonna seize them all. You know what? Nice. I got a bunch of them. Come on, Vince. Please heal me. Nice. Vince has so much strong medicine to give me. All right, I'm close to defeating the Abominable Showman. Keep hitting me. This is actually really fun. Oh, I just beat him critical hit. All right, now it's not your turn, Underdigger. And Vince just keeps healing me. Besides, I can keep attacking. Vince just keeps healing me. Sounds like a good arrangement. Vince is such a really tough. Ha, we beat him. Nice. The Underdigger and Abominable Showman are defeated. Oh, thanks. The next fight, huh? Who's fighting? Oh, it's Eric. He's fighting against that woman, that Eric's partner. Oh, he's out. Where'd she go? Right in the face. Oh, man, Eric got beaten. Rabin Jay, those are the names of them. So Eric's out, huh? Shame badge.  He's like not impressed. And we made it. Invincible and take the title again. Invincible, huh? The champ at the post, it's all still to play for. Come back tomorrow when the action continues. You won't... Tomorrow. So we're finalists, it looks like. Too bad Eric didn't make it. It would be nice to fight him in the finals. This is huge. Oh, he seems like a good guy, doesn't he? Seems like a very pure, pure guy. Let's see what this priest dude has to say. He's a cleric, actually. Even tougher team in the next round. Who's the tougher team? All right, let's go see me up with my friends. Let's see what they have to say about my victory. Oh, are they talking to Eric about him losing? Oh, no. That's funny. Oh, it's them. Rabin Jade. Would you mind stunning aside? Actually, they'll polite all of a sudden. I'm Vince. I think Vince might get kidnapped. Partner disappearing before the big day. Yeah, that'll be really bad. All right, so we should go check up on Vince. Maybe I should visit the orphanage. Yeah, I know where it is. All right, thanks Serena. Now, where is... Wow, I'm a big hit. I got fans apparently. Let's see what this old man has to say about me. Some of the fighters are disappearing. Oh, no. That's very suspicious. Maybe we should investigate that. There will always be a place in my heart for Cinderella, and Wombalina is just the sweetest pie too, but I'll tell you who's really turned my head around. The girl with the long black hair. Jade. So everyone likes Jade, huh? So many good matchups. And he's just talking about the matchups, and this guy's talking about the ladies. He was the one who was all talking about how he knows every single female fighter, wasn't he? The thing I like about Dragon Quest is that all the NPCs have distinct personalities, and this person has carryover after story events happen. So that guy's still acting like the way he's supposed to act. Oh, I'm famous. There's not a soul in Octagonia who doesn't know who I am. Wow. The good lady will go positively do lally if I spend another penny. So he would hire me to be his bodyguard if his wife didn't prevent him. Oh, hello there, my little friend. Never wore a costume. We'll ask around a bit, see if we can find any more about these disappearances. Vince might be a target. All right, thanks. See you around. Oh, there's Vince. Got you later, man. All right, so he's walking off. What was he talking about? Hey, where'd he go? Everyone's talking about me. Wow. That's cool. Wait, do I have any money? Did I get any money from that? 860? I don't think I got much more, did I? Hello? Everyone thinks Vince is going to get kidnapped, but you better not. Hello? Wow, thanks. He thinks that I have a shot at winning. What are these guys? There you go, pal. One ticket for the best seat in the house. You want to buy this lucky charm, too? These things work. Wonder what the Octagonian girl's wow.  His old ma's advice is to trust everybody he ever meets. Wonder what island he's from. He's from an island? Huh, is there an island in this game somewhere? Maybe we'll find out about that later on. Huh, this game has a very interconnected world, if you haven't noticed yet. Are those Vince? He almost punched me. Oh, it's okay, I guess.  Oh, sure. I'll come inside, check out the orphanage. Oh, very important friend, huh? Oh, that's nice of him. At least we're fighting for a noble cause. That's good. Look at the time. Sorry, once I start gabbing, I kind of find it hard to stop. Wait, was this something you wanted to talk about? I mean, I'm guessing that's why you came to... What was that? Yeah, someone's in his room. Oh no, we should go check that out. A burglar. We gotta go check up on Vince. Oh no, what are those things? You down with that? Uh, I don't know about that. Why would I stay here when I could stay in my safe in, you know? Oh, come on. Okay, I guess I'm gonna be staying at the orphanage tonight. Fighting time. All right, it's time for the next fight, everyone. That was weird. His house got burglarized in the middle of the night. What's the deal with that? All right, how are you guys doing tonight? Just because you lost doesn't mean torment's over. You gotta get out in the crowd and cheer for your fellow fighters. Obviously, you clap. Like this peep, peep, clap, clap, peep, peep, clap, clap. Think you can do that? Can I get a peep, peep? Okay, so he's still pumped up even though he lost. That's good. And he has good spirit. All right, here's my favorite priest.  You told me already. Okay, yeah, I'll go on my venture. All right, let's go. Hey there, partner, it's fighting time. You all set? Yeah, I'm all set to go. There's not much more I can buy. Oh man, I wonder if my next opponent's gonna be really tough I heard. Wonder who it's gonna be. Oh, it's these ladies. The BT Queens, the two ladies. This is gonna be a tough fight. Yeah, that's true. All right, here we go. Next fight. Let's get physical. Cinderella and Wembley in a draw near. All right, don't let the cute, ad-fool you. These babies mean business. Blue, black, and blue when I'm through with you.  I almost died. All right, so I'm pepped up. Let's go. Can I use Sizz on both of them? No, it can only be used on one. Who should I use it on? I think Cinderella was really tough. I gotta use it on her. Sizz. Okay, I should probably heal. Or he'll heal for me, actually. Keep using Flame Slash. Don't stop. All right, gonna use Flame Slash one more time. Oh no. Thanks. That was tough. So that was their pep move where they lit it up, I guess. So why is it that she can use Sizz on both of us, but I can't use Sizz on both of them? Isn't that kind of unfair if you think about it? Oh, she's almost dead. Oh, you're stealing my move. She's healing me. Yes. Come on, Vince, don't fall for it. No, you're not mid-healing. No, Vince, no. Thanks. Okay. Or I'll heal myself. Nice. Missed. Nice. Sheesh. Sizzle. All right, thanks, man. All right, got him. No. Oh, come on. Oh, he's all out of magic. She's all out of magic. Nice. All right, let's do this. Blocked it. And she's done. Down for the count. We're gonna destroy her now. Pept up. Got her. Nice. You're invincible. Nice job, team. And we win. Well, that was a good fight. The next, the signing finals. The bullion boys. It's... Where are they? Delvando. I love his fake voice, like a superhero voice. The great voice he has. Yeah, you could say that. Like how Intuity's getting. What is that? He's supposed to stop right at the bottom and downs his contents in a single gulp. What, it's like an energy drink or something? Wait a minute. That's a little suspicious, but okay. All right, it's us versus Silvando and the golden boy. The bullion boys. These guys are real mavericks. Be on your guard, okay? All right, queue up now. He has his own little character. Oh, he used Miracle Slash. Sterling Silver and Golden Boy. Crap. Well, you know, Vince will heal me. How does he attack? See? I can always rely on him. Oh, he's using those boomerangs. Oh, he missed. All right, Silvando. You're done for. Eesh. Thanks. Sterling Silver. Silvando's a really tough knight, which is why this is gonna be kind of tough. Oh, I didn't unequip his sword, so he still has his sword. I did get rid of his platter though, so he doesn't have a shield. I didn't want to sell his sword. Vince, you have met your match. It's interesting that he has his, like, little voices in this. Oh, he's almost done. This is a lot easier than it was the first time. Whoa. All right, all right. I see where it's going here. Eesh, okay. Thanks. That was weird. That wasn't Silvando's original voice actor, was it? That's interesting. I feel like... Well, I'll talk about it later, but I feel like these guys have different voice actors for their new stuff. I think they got some new people to do the voices. I heal me, Vince. Help me. Oh, come on. Why is he not healing me? Okay. That almost killed me. Thanks. Jeez. They're all pepped up now. Ready to go. All right, Vince, heal me. Help me, buddy. Thank you. All right. Nice. We beat Golden Boy and Silvando. Not bad. The Bullion Boys are defeated. All right. The great Silver... I am Serling Silver defeated. I feel no shame in losing to one such as you. It was a battle of epic and legendary proportions. And I thank you for it. Good luck in the final. Darling. Yeah, he's great. Silvando. Here it is, the end. Just two teams remain. I wonder who the finalist is. Will the princess and the pudding please take to the stage? Princess and the pudding. That's Rabb and Jade's name. The Rabb's the pudding. The Rabb doesn't move at all. Something about these two gives me the willies. But we got this. Time for a little good luck boost. Good luck boost. Is he... Is he like, like, roiding up or something? Is that what that is? Like he's juicing? Is this supposed to be like a WWE reference or something? Yeah, I saw that. He's got Rory Rage. That's it. That's his thing. That's a secret. Show us what you've got. All right. Rabb and Jade draw near. Look at Jade. She's like, bouncing on one leg. Let's hope these guys got this far. Jade's pretty fine. All right. Oh, he missed. These guys are really going to be tough. Rabb is not doing anything, right?  I got to get Jade. I blocked it too. So you're not the only one who can... Come on, attack Jade, not Rabb.  Rabb is literally just going to stand there. Let the darkness consume you. She's just assessing the situation now. No. No. No. Please heal me. Okay. I'm still asleep. If she kills me. I got killed. Wow. I couldn't even defend myself against that. After you got knocked out, I managed to hold out for a tie. So we got to rematch on our hands. How'd you get a tie? All right. Let's head downstairs and we'll buy some more equipment because I think I have enough. Yeah, I have enough. All right. We're going to have to get that iron armor now because Rabb and Jade are really tough. All right. All right. Let's head on over to the weapons store and I need to go get some good weapons. All right. You have a good weapon. I need good armor is what I need. You managed to hold out for a tie. Do a rematch on our hands. What I need is this, but I need about 700 more gold. All right. Let's sell some stuff. I don't have anything to sell though. Fine. Let's sell Grizzly and Sishilling. I'll sell Flintstone, I guess. Living in Biscous. Three of those. All right. Small scale. Sell three of those. Two of those. Magic water. That'll actually get me enough, won't it? I applied gold ore. Witherwood. All right. We can sell some more stuff. Glass Frit. Don't need any of that. Pitch Pearl. We're really close to getting what we need. All that. All right. That should be enough stuff I sold. So let's buy that armor and wear it. Nice. All right. Let's go. Hopefully this should be enough to defeat Rabin Jade now. And I'm back up. All right. We should save here. I'll save real quick. We're all full health. All right. At least I'm in full health. He's tired. Died from all stairwear he's taken. That's what he's tired from. All right. We'll skip this. Rabin Jade. Draw near again. All right, Jade. You're going down.  All right, laddie. Let's see what you're made of. Okay. Oh, okay. He's healing me. I'm gonna snore. Okay. He didn't care about healing me. No. No. No. If I die again. I swear.  Maybe I should kill Rab first. Are you kidding me? Are you kidding me right now? Oh my goodness. They're really tough. You know what? That was a lot of fighting for today. Just a save here. All right, so you know what? I think we'll end today's episode here because that was a lot of fighting and a lot of getting our asses beat. So we'll continue next time trying to be Rabin Jade next episode. So yeah, thanks for watching and I'll see you next time when we continue fighting and Rabin Jade in the finals of the mass martial arts tournament. Bye.