Do Your Best Genki is a sports manga by Yū Koyama about Horiguchi Genki, a boy who is raised by a single father, and who wants to be a boxer like him. It was adapted as an anime television series by Toei Animation. The manga received the Shogakukan Manga Award for shōnen in 1977.
Toshiko Fujita
Katsuji Mori
Makio Inoue
Kazuko Sugiyama
Shuichi Ikeda
Hiroshi Masuoka
Keiko Han
Hiroshi Ôtake
Toru Furuya
Ichiro Nagai
Sumie Sakai
Hiroshi Masuoka