ima , ▁and ▁took ▁part ▁in ▁the ▁battle ▁in ▁the ▁ 2 0 th ▁Ward . ▁She ' s ▁killed ▁during ▁the ▁fight ▁with ▁Mai ro ▁and ▁M ats um ae , ▁when ▁she ▁sli ps ▁on ▁her ▁own ▁blood , ▁which ▁allows ▁M ats um ae ▁to ▁imp ale ▁her ▁and ▁is ▁then ▁dec ap itated ▁by ▁Mai ro . ▁As ▁later ▁revealed ▁by ▁Ar ima , ▁H air u , ▁like ▁all ▁al umn i ▁of ▁the ▁Sun lit ▁Garden , ▁is ▁a ▁half - human . ▁ ▁Rank ▁ 1 ▁Investig ators ▁ ▁A ▁ 2 0 - year ▁old ▁Rank ▁ 2 ▁Investig ator , ▁and ▁member ▁of ▁Team ▁H ira ko . ▁He ▁is ▁the ▁son ▁of ▁Special ▁Class ▁K uro i wa , ▁and ▁considered ▁to ▁be ▁an ▁exception ally ▁gift ed ▁young ▁Investig ator . ▁Kur am oto ▁notes ▁that ▁he ▁is ▁among ▁the ▁ 0 . 0 1 % ▁of ▁humans ▁that ▁poss esses ▁physical ▁strength ▁above ▁normal ▁human ▁limitations , ▁and ▁can ▁therefore ▁actually ▁fight ▁G hou ls ▁un ar med . ▁He ▁gets ▁promoted ▁to ▁Rank ▁ 1 ▁Investig ator . ▁He ▁is ▁a ▁friend ▁of ▁Y or iko ▁Kos aka , ▁una ware ▁of ▁her ▁connection ▁with ▁T ou ka , ▁and ▁later ▁becomes ▁her ▁husband . ▁ ▁A ▁Rank ▁ 1 ▁Investig ator ▁and ▁a ▁member ▁of ▁Su zu ya ▁Squad . ▁ ▁Rank ▁ 2 ▁Investig ators ▁ ▁A ▁Rank ▁ 2 ▁Gh oul ▁Investig ator ▁that ▁was ▁A ki