The Lowly Ronin: Hanayama Daikichi.

Low-caste former samurai Hanayama Daikichi and his gambler friend Hanji of Yaizu, come to a once peaceful post town of Kofu. A town now filled with gamblers, prostitutes, and unscrupulous opportunists, all drawn by the smell of blood and the scent of newly-mined gold. Daikichi brings a little girl whose father has been butchered by yakuza assassins, hoping to find her family. Intrigue and violence follow the group as they must ward off a deadly female spy and a mysterious ronin with a violent past. Tension mounts as all these forces come together to unravel a secret which will unleash a wave of violence that could destroy them all.