▁self ▁and ▁killed ▁M ats um ae . ▁He ▁is ▁an ▁al umn us ▁of ▁the ▁Sun lit ▁Garden , ▁an ▁agent ▁of ▁V , ▁and ▁originally ▁was ▁a ▁half - human , ▁but ▁he ▁had ▁R ize ' s ▁k ag une ▁impl anted ▁into ▁him ▁in ▁secret ▁with ▁Kan ō ' s ▁help , ▁transform ing ▁him ▁into ▁a ▁half - gh oul ▁strong ▁enough ▁to ▁defeat ▁S SS ▁level ▁g hou ls ▁like ▁E to , ▁although ▁if ▁the ▁other ▁agents ▁of ▁V ▁discover ▁his ▁K ag une ▁he ▁could ▁be ▁l abeled ▁as ▁a ▁possible ▁target ▁for ▁execution ▁as ▁he ▁performed ▁the ▁procedure ▁in ▁secret . ▁He ▁in fil tr ated ▁the ▁C low ns ▁under ▁the ▁name ▁, ▁the ▁Gh oul ▁that ▁prov oked ▁R ize ' s ▁accident ▁and ▁collabor ated ▁with ▁Dr . ▁Kan ō , ▁thus ▁collabor ating ▁with ▁Kan ek i ' s ▁transformation ▁into ▁a ▁half - gh oul . ▁His ▁talk ▁with ▁E to ▁revealed ▁he ' s ▁also ▁an ▁out cast ▁of ▁the ▁W ash ū ▁Cl an , ▁something ▁that ▁ang ers ▁him ▁greatly . ▁Once ▁all ▁other ▁members ▁of ▁the ▁W ash ū ▁family ▁are ▁killed , ▁N im ura ▁is ▁inst ated ▁as ▁the ▁new ▁Bureau ▁Director ▁of ▁the ▁C CG ▁and ▁begins ▁an ▁ag gress ive ▁campaign ▁to ▁w ipe ▁out ▁all ▁G hou ls ▁not ▁affili ated ▁with ▁him ▁in ▁the ▁city , ▁which ▁is ▁a ▁r use ▁for ▁his ▁true ▁objective , ▁which ▁is ▁to