The Yagyu Family have been teaching the Shinkage fencing style for generations. However, the master of a new fencing school in Edo claims to be the true successor of Shinkage and tries to take over the Yagyu's political power.
The Tokugawa new Shogun is not interested in women. A nobleman with the help of a lady thief replaces the Shogun with a double, while he learns about love. But the double finds pleasure not only in women, but in his new status.