Ihai (Spirit)

Ihai (遺灰, remains from creation) is the Zanpakutō spirit of Hyōsube. The last true friend Hyōsube has, Ihai finds sadness in the fact that Hyōsube has fallen so low in the recent years. He has a sturdy relationship with Diablo who also inhabits Hyōsube's mind. It is apparent that Ihai is slowly dying, as he is linked with Hyōsube's body and soul, the latter of which has deteriorated into pure darkness.