Description：33-year-old Yusa Hiroko (Tomosaka Rie) is a busy working woman. Because she longed for work, she divorced her husband two years ago and pulled her 6-year-old son Tomoya alone, with no leisure day and night. One day, the mother and son encountered a strange man dressed as a samurai. He called himself Nakajima Yasubei (Nishikido Ryo), a shogun who worked for the Tokugawa family. For some reason, he traveled to modern society. Because he had no one to rely on, Yasubei lived in the home of Yusa and his son. Ancient and modern values collided fiercely, and made a lot of jokes. The chauvinistic Yasubei gradually put down the noble posture of the samurai, took on the role of a family man, and the relationship with the mother and son became more and more harmonious. In the end, he achieved gratifying results in this strange society... This film is adapted from the original work of the same name by Gen Araki