Naruto: Yami's Favorite Ghoul

Yami, the Goddess of Darkness and the ruler of Hell has grown tired of watching her sister's chosen be killed by the people he's supposed to protect. When she's presented with a chance to change things while also bringing back her favorite race of beings she takes it. Now she'll watch from her throne as her little centipede brings Ghouls to the Ninja Lands. demon/ghoul Naru.