The Northern Wolf (2002)

A fishing town on the verge of ruin. The Oikawa clan, which runs the local government, is at odds with the Sado Union and the Hoshikawa clan, who are plotting to take over the town. When a man named Kizaki arrives in the town, he finds the Oikawa clan leader and Shogo's sister, whom Kizaki had met, murdered in a war between the two groups, and Kizaki finds himself caught in the middle of the conflict.