The story centers on three students from Jiyu University who set up a part-time limited partnership, with Jotaro Yamaji (Koji Tsuruta) becoming its president.
| Actor | Role |
|---|---|
 Koji TsurutaJotaro Yamaji | Jotaro Yamaji |
| YYuji KawakitaShinji Kihara | Shinji Kihara |
 Rieko SumiOmatsu | Omatsu |
 Shirō ŌsakaNot listed | Not listed |
 Shinichi HimoriSuekichi Nojima | Suekichi Nojima |
 Toshiko KobayashiMizue Yamada | Mizue Yamada |