Kozure Ôkami: Oya no kokoro ko no kokoro

Ogami Ittō, a disgraced former shōgun's executioner, is hired to kill Oyuki, a deadly tattooed female assassin. He tracks down Oyuki's tattoo artist, who explains her troubled past, and later reunites with his 3-year-old son Daigoro, who has become separated from him. Ogami Ittō and Oyuki engage in a final duel, and after defeating her, he continues his pursuit of Retsudo Yagyū, the head of the Yagyu clan and Oyuki's nemesis, leading to a fierce battle that concludes with Retsudo's defeat.