The Earth and the Sea

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.