Kite

Sawa, an orphan, was taken in by detectives Akai and Kanie after her parents' murder. They trained her as an assassin, targeting influential individuals and using her as a means to exact vengeance. Physically and emotionally abused by Akai, Sawa's desire for a normal life grows, but she's tied to her role as a killer. She meets Oburi, another troubled orphan and vigilante, who shares her disillusionment with the world.