The daughter of a small-town dojo master, she loses her father's dream when he disappears and is forced to close the dojo. Entering the service of Teruhime, a sister-in-law of Aizu's daimyo, she gradually nurtures her own ambition with the sword. At Teruhime's request, despite being a woman, she is granted permission to join the group of swordsmen in Kyoto — the organization that would become the legendary Shinsengumi.