Tora-San returns to Shibamata just before his family leaves on a trip for Kyushu. Later, he encounters an old school chum and begins to have feeling for his artist sister.

In the early 18th-century, Lord Takuminokami Asano, feuding with Lord Kira, tries to kill his opponent in the corridors of the Shogun’s palace. The Shogun sentences Asano to seppuku and…