Kenkaku Shōbai (1973)
Original title: 剣客商売
Kenkaku Shōbai is a 1973 Japanese-language drama series. It stars Gō Katō, Isao Yamagata and Mikiko Otonashi.
Kohei Akiyama, a popular master swordsman, and his son Daijiro live in the town of Edo in good faith. While running a dojo, Daijiro and his father find themselves wrapped up in a series of events with the town's people.