After the deaths of those closest to him, thirteen-year-old ANBU Hatake Kakashi is headed down a dark path. But when Hogwarts requests a guard for one Harry Potter, will he be able to change for the better? Could the mysteries of his past be revealed in this new world? Set in third year.

Kirigakure captures Kakashi instead of Rin, leaving him the Jinchuuriki of the Three-tailed beast. Kakashi finds salvation in his supposed-dead friend Obito, but their reunion comes at a price neither of them were prepared to pay. With the turtle demon sealed defectively inside of him, Kakashi and Obito must master their new abilities before it's too late. AU, Kakashi/Obito.