▁old ▁man ▁who ▁lives ▁at ▁the ▁housing ▁complex . ▁Old ▁Cho ▁has ▁psych ic ▁powers ▁which ▁he ▁uses ▁to ▁murder ▁other ▁occup ants ▁of ▁the ▁complex . ▁His ▁apparent ▁mot ive ▁for ▁the ▁kill ings ▁is ▁to ▁possess ▁an ▁item ▁belonging ▁to ▁the ▁victim , ▁which ▁Old ▁Cho ▁then ▁takes ▁as ▁tro ph ies . ▁The ▁old ▁man ▁bel ieves ▁that ▁his ▁mur ders ▁and ▁the ▁cha os ▁resulting ▁from ▁his ▁actions ▁are ▁more ▁like ▁children ' s ▁games ▁than ▁actual ▁wrong do ings , ▁and ▁he ▁often ▁acts ▁like ▁an ▁imm ature ▁child . ▁ ▁E ts uk o ▁- ▁a ▁young ▁girl ▁who ▁moves ▁into ▁the ▁housing ▁complex ▁with ▁her ▁family . ▁E ts uk o ▁also ▁has ▁an ▁immense ▁battery ▁of ▁psych ic ▁powers ▁and ▁uses ▁them ▁to ▁battle ▁with ▁Old ▁Cho ▁and ▁stop ▁his ▁reign ▁of ▁terror ▁against ▁the ▁housing ▁complex . ▁ ▁Ins pect or ▁Yam ag awa ▁- ▁a ▁senior ▁police ▁detect ive ▁who ▁acts ▁as ▁the ▁first ▁lead ▁investig ator ▁on ▁the ▁case ▁until ▁his ▁death ▁at ▁Old ▁Cho ' s ▁hands . ▁ ▁Ins pect or ▁Ok am ura ▁- ▁the ▁second ▁lead ▁investig ator ▁on ▁the ▁case , ▁replacing ▁Ins pect or ▁Yam ag awa . ▁He ▁was ▁once ▁a ▁close , ▁long time ▁colle ague ▁of ▁Yam ag awa ' s . ▁ ▁Ins pect or ▁Tak ay ama ▁- ▁a ▁young ▁detect ive ▁helping ▁Ins pect or ▁Yam ag awa ▁and ▁later ▁Ins pect or ▁Ok am ura ▁with ▁the ▁investigation .