Hakudōshi

Hakudoshi was Naraku's eighth detachment, who was actually the other half of the baby Akago. Akago was cut in half by a monk; one half remained a baby while the other grew to be Hakudoshi. Hakudoshi first appeared when the body of Akago was cut into two, him being spawned from the half Kagura was carrying. Nothing was known about the other half as it was in Kanna's possesion. Hakudoshi then defeated the previous steed of Entei, and Entei became Hakudoshi's steed. Hakudoshi was then determained to get to the Neverworld, in order to get the last Shikon Jewel Shard, which was in the body of a crystalis in The Great Dog Demon's body. Hakudoshi then is later killed as he and Akago plan to betray Naraku.