The story centers on an elderly hibakusha, whose husband was one of 80,000 human beings killed in the 1945 atomic bombing of Nagasaki, caring for her four grandchildren over the summer. She learns of a long-lost brother, Suzujiro, living in Hawaii who wants her to visit him before he dies.
Kumokiri Nizaemon, a former samurai warrior, has abandoned his class to become the leader of a gang of thieves. He leads his outlaws in an attempt to rob the castle of his former clan.
Fourth Moonlight Mask theatrical film.
