简介：　　SatoshiMinagawa(KanjiTsuda),anofficeworker,heseemslikeaseriouspersonbutinreallife,heisamaniaforpornmoviecollecting.NaoAiba(RubiAiba),highschoolstudent,shewandersthetownwithherfriendMamiratherthangotoschool.SayuriMaejima(ShionMachida),unemployed,verybeautifulbutunorganizedperson.HerbrotherKougetsteasedfromhisclassmatesallthetime,buthegrowsmagicmushroominhisroomandsellthemtostrangers.Onedaythesefourpeoplewhodon’thaveanycommonintereststangleupincomplicatedgroupsexparty.