Akai Hayate

Hayate Kanuma, a skilled ninja, is dissatisfied with the Shinogara's tyrannical control over Japan. After killing his father, the leader of the Shinogara, Hayate is forced to flee and finds temporary refuge with his sister, Shiori. Hayate's soul is able to transfer into Shiori's body, allowing him to tap into his ninja abilities when needed, but this temporary solution comes at the cost of Shiori's losing her own identity. With the Shinogara closing in, Hayate must find a way to defeat them once and for all.