Chushingura (1985)

The revenge of the forty-seven rōnin (四十七士 Shi-jū-shichi-shi, forty-seven samurai), also known as the Akō incident (赤穂事件 Akō jiken), is an 18th-century historical event in Japan in which a band of rōnin (leaderless samurai) avenged the death of their master. The incident has since become legendary.