The 21-year-old feudal on Sendai, Tsunamune Date, was prohibited to go out in the daytime for his misbehavior during his short stay in Edo. On the next day, his 4 attendants were killed one after another. Sakai Utanokamike, the Rozyu, is turned out to be involved in this scheme, and the aim is to destroy the Date family. Tsunamune's brother Munekatsu Date who is willing to take over the family doesn't know the real purpose of Utanokami and helps him. Munesuku Harada gets to know the whole picture of the incident and takes action alone for the sake of protecting the Date family, leaving his own family. His lonely fight continues for 10 years and he got in danger in Utanokamike's house, and...

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