Choshichiro Edo Nikki (長七郎江戸日記) (Choshichiro's Edo Diaries) was a long-running prime-time television series in Japan. The title character was , the son of Tokugawa Tadanaga. The premise of the show focuses on Tadanaga's death as a result of an alleged plot to overthrow his elder brother, the third shōgun Tokugawa Iemitsu. Choshichiro lives among the commoners in the shogunal capital city of Edo. Kōtarō Satomi portrayed Choshichiro throughout the series.