system
A chat on subreddit /r/me_irl
human
The game would be 1000x better if they just removed resin. There's no real need for it other than artificially limiting play time. If I want to spend 8 hours grinding RNG on RNG on RNG (x10) for the perfect artifact set, I should be allowed to. I also shouldn't have to dedicate like two weeks of resin to grind out the mats for one unit to get maxed out, keeps me from being able to try out new units since I have to focus on one at a time so they can even be useful since you're locked at high levels so units can't be used until they're pretty much at max level.

Want to use that new unit you just got? Oh, You're at world level 8? Better get to grinding because that unit is useless until it's level 90. Except you can only do like... 5-10 things a day to grind for that unit and you better hope for good luck because more than likely you'll get 1-2 of the lowest rank gem items and 1 boss mat each time. Then you find out you don't like that character's playstyle, or you find that they don't mesh well or aren't really useful unless you have some OTHER unit that you either don't have or is only at level 20 so you have to grind for THEM to get up to level...
gpt
I really wish this game had a way to reroll ONE stat on artifacts. It would help fix broken artifacts so much. Or just get rid of flat ATK, DEF artifacts and made the drop chances close to the same. I think artifacts have a 20% to roll def, at%, hp% and like 10% crit, 10% crit dmg, 10% ER and 10% EM. Its the most aggravating part.