ek o - chan ; ▁however ▁when ▁he ▁uses ▁one ▁of ▁his ▁nin ja ▁techniques ▁in ▁order ▁to ▁win , ▁H att ori ▁usually ▁steps ▁in ▁to ▁save ▁the ▁day . ▁He ▁we ars ▁green ▁colored ▁nin ja ▁ro bes . ▁Only ▁K age chi yo , ▁Ken ichi ▁and ▁the ▁Kan zo ▁family ▁know ▁about ▁his ▁dual ▁life ▁that ▁he ' s ▁a ▁nin ja ▁like ▁H att ori ▁while ▁he ▁joined ▁Ken ichi ' s ▁school ▁as ▁a ▁normal ▁boy ▁in ▁the ▁middle ▁of ▁the ▁series . ▁His ▁parents ' ▁where about s ▁are ▁unknown , ▁but ▁his ▁mother ▁is ▁noted ▁several ▁times ▁in ▁the ▁series . ▁He ▁is ▁called ▁Am ara ▁in ▁the ▁H indi ▁dub , ▁but ▁retain s ▁his ▁name ▁in ▁the ▁Indian ▁English ▁dub . ▁▁▁ ▁( voice : ▁E iko ▁Yam ada ) ▁Is ▁a ▁talking ▁animal - n in ja ▁of ▁the ▁K ō ga - ry ū , ▁K age chi yo ▁is ▁the ▁helping ▁ant agon ist ▁in ▁the ▁series . ▁Usually ▁K em um aki ▁gives ▁a ▁big ▁task ▁in ▁his ▁plans ▁for ▁K age chi yo ▁to ▁carry ▁out , ▁which ▁he ▁often ▁does ▁not ▁succeed ▁in . ▁This ▁is ▁because ▁he ▁doesn ' t ▁get ▁enough ▁training ▁from ▁K em um aki ▁and ▁is ▁seen ▁sleep ing ▁on ▁the ▁streets . ▁He ▁is ▁noticed ▁by ▁H att ori ▁several ▁times . ▁He ▁is ▁seen ▁to ▁have ▁a ▁rival ry ▁with ▁Sh ish im aru . ▁His ▁fur ▁color ▁is ▁black