Legally referred to as Nikui as a result of having been named such by his parents, Dokushin Kamizuru is a Kumogakure-affiliated missing-nin who was recruited into the Kamizuru Clan by Oshiishi Kamizuru himself. Unbeknownst to anyone but himself, Dokushin hates ALL shinobi - including even himself - due to the fact that he believes that they have selfishly continued the military use of children in spite of the fact that superpowers such as the Five Great Shinobi Countries are more than capable of maintaining a standing army without having to resort to such an immoral practice.