japanese adult visual novel developed character designs alias originally released game rom december subsequently released dvd rom playstation certain scenes removed title word meant reflect prominence spelled japanese produced fan disc shortly dvd rom release adapted media including novel series manga series episode anime directed licensed north_america later radio drama art reference books gameplay follows semi plot major events remain personal storylines player choices game focuses protagonist chris meets girls maid mansion near ruins tokyo distant future player goal available sexual scenes images player view replay time depicting protagonist having sexual intercourse girls player pursue girls finished sisters storylines sales visual novel fan disc list games japan multiple times spawned internet opening sped music swedish band reception anime mixed reviewed volume critical anime sexual themes especially regard reviewed series tended overall positive reviews praising story unexpected depth gameplay visual novel players spend time reading dynamic text representing dialogue characters inner thoughts protagonist progressing text players come decision point choose multiple options text end player new location dvd rom ps2 versions use option continue event time decision points varies game points depending choice player makes plot progress branch specific direction player romantically pursue sisters seek characters sisters scenarios completed special music mini game certain points scenario goal mini game max magical girl magical power meter hitting balls right moment outcome mini game affects storyline successfully completing scenarios unlock option main menu allowing player play mini game different music tracks finishing scenario new story featuring player save game text screen versions limitation removed ps2 port ps2 port altered events scenes based dvd version plot characters player assumes role chris protagonist chris high school direction society refuses job streets making living guitar playing feels play audience hard find main characters include sisters maid live western style mansion eldest plants middle sister chris behavior youngest energetic magical girl helps people maid appears reveals hidden depth later story story takes place distant future remnants tokyo destroyed altered geological disaster caused giant structure resembling arose city atop hill main location game european style mansion seen completely place city daytime spent outside mansion wandering town meeting characters triggering event sequences follows chris lifestyle changes mysteries surrounding like object caused destruction tokyo past story opens chris desperately considers stealing food stand near shrine entrance theft unsuccessful town looking work finds convenience store gets directions leading mansion enters asking permission runs sisters android maid chris asks permission stay rent cheap girls pretty consent force time job convenience store owner hires story progresses chris opens socially begins caring girls meets new friends including classmate local shrine maiden named mysterious girl named development developed handled scenario development designed characters working alias composed music series contributed theme music vocals created dimensional computer graphics backgrounds events character poses characters mouths eyes animated numerous poses exist major minor characters created slightly fewer graphics reduce production costs game uses character placement system display characters relative protagonist distant characters appear small grow larger player approaches requested applications japanese voice actresses june seeking fill roles sisters satisfied applicants held open auditions roles starting june produced distributed ps2 port based dvd rom version original game project supervisor ps2 port release information released trial version download november released version rom following december increase pre order sales packaged initial rom release special maxi single theme songs firm released fan disc july titled disc includes character based mini games including original magical girl mini game new storyline content routes based separate music containing background music original game themed computer accessories items unlocked fan disc preceded release main game august dvd rom game enhancements official release produced ps2 port named released march scenes port changed removed comply sony ban sexual content release rating later revised rating system given rating tried compensate absence graphics gameplay improvements buyers port bonus themed calling card poster music released free games december march collectively named featuring heroine designed games humorous fun second allows transform form certain point story initial limited edition release rom suffered critical errors graphic display issues saving loading issues inability complete routes mini game starting issued patch january later versions game released bug free contained errors addressed issues patches patch added missing voice data original game customers given option patch exchanging new released second patch july corrected errors adjusted game difficulty enhanced stability second patch contain related media anime series shaft produced anime featuring directing writing character designs based original concept animation oversight composed opening theme song style game wrote ending theme song satellite station channel aired anime july october narrative episodic usually focuses character time episodes focuses main characters depicting social interaction growth anime use time travel allows focus older versions children previously featured characters contrasts experiences protagonists reviewers experienced difficulty anime feature overall comedic tone characters eager help new acquaintances nudity appears episodes sexually explicit scenes occur rated series ages gave release rating shaft released teaser dvd entitled secret sisters ban june featuring character designs dvd contained video interviews anime japanese voice actresses music radio drama theme metallic paint illustrations visual released anime japanese dvds containing episodes discs release period september february disc came promotional girls provided dvds lower costs volume dvd jacket occurred production numbering episodes incorrectly offered free exchanges jackets licensed dvds north american release producing dvds containing episodes december april began selling box set august shortly firm demise licensed anime distribution late having announcement july released complete series disc set october setting plot adaptation visual novel anime takes place alternate reality main female characters relations unchanged storyline unrelated game plot follows perspective sisters maid game protagonist game major female characters appear minor characters supporting cameo roles story centers sisters travel time mansion run christmas shop search resembling sisters interact try improve situations anime suggests including antagonist keith attempted similar journeys past anime covers little backstory reason keith associated sisters meet traveling time gives option continue stay era enjoy choose story ends continue traveling time leaving unanswered questions concerning final destination chosen bodies connected mansion live allows travel time bodies cease age outside mansion hair stops growing jump years future traveling time arrive different places split party scenario left music visual novel features themes opening theme theme song magical girl tan ending theme answer added theme songs best album soundtracks radio drama plays work composed live events customers pre ordered game received theme songs bonus content coincided visual novel premiere release special maxi single containing anime vocal theme songs instrumental counterparts unavailable listeners image album based visual novel packaged pre order item ps2 port following year anime opens closes released length albums extended play based anime late debuted august featured versions anime opening ending themes image song collaboration album contains original character songs japanese voice actresses released november second album comprised anime original soundtrack released 27th radio drama publications developed radio drama named based song anime broadcast premiere dvd secret sisters focused sisters respective japanese voice actresses playing roles broadcast segments ran april september second october december radio drama later debut week announced january website compiled cds wrote illustrated novels entitled published june august novels follow plot series involving notable characters combining personal storylines published manga series story revolved sisters manga released volumes december august reference books released visual fan book published distributed featured new story printed western format published art book series entitled game collection illustrations appear art works fan book television series released march entitled exciting rom book rom containing microsoft windows rom extra content legacy reception sales visual novel visual novels released enjoyed strong initial sales national rating games listed initial rom release ninth place half months release stayed charts half month returned months release brief stay sixth shortly fan disc released dvd rom release rose fourth overall sales month debut fan disc release propelled eleventh sold games month ps2 port received score rating visual novel featured dance opening internet phenomenon dance features swinging sideways holding hands near sides heads making goodbye motion internet users set dance sped chorus song scene popularity helped franchise attain cult following dance performed individuals especially japan anime conventions advertising video games unrelated anime popularity japan brought band prominence anime english dvd met mixed reviews united_states gave stars stating pretty pictures created specifically sell dvds tiny merchandise adult men gave final rating recommended criticized bonus content reviewer remarked disc surprises old reviewer like held mixed attitudes second dvd citing certain characters level nudity reviewers praised storyline considering especially complex video game based anime proven difficult english reviewers leading praise multi genre style appeal critics reviewed dvd gave series negative marks reviewed gave stars awarded recommended status citing discs examining release concurred anime improved end despite rushed plot development gave series low marks overall feeling quality varied wildly episode level nudity importance storyline widely debated anime nation feels explicit nudity ruined anime character depth complex storyline agreed excessive reviewer likened porn attributed release demand nudity reviewers mixed claimed nude scenes place considered appropriate considered overall use nudity minor critics generally praised animation character design despite plot found character design memorable reviewer disagreed found praise minimalist approach score voice acting good reception credited english voice director protagonist criticized voice acting reviewers particularly praised voice
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