The movie follows the life of an unpopular comedy duo. The duo, called "Boso Swimmers", have been working together for 12 years, but the duo sees little future in their comedy careers. They then begin to write their thoughts in a diary
| Actor | Role |
|---|---|
 Atsushi ItoYohei Tanaka | Yohei Tanaka |
 Keisuke KoideKoji Komoto | Koji Komoto |
 Masami NagasawaKumi | Kumi |
 Fumino KimuraMaiko | Maiko |
 Haruna KawaguchiSakura | Sakura |
 Kuranosuke SasakiJunya Kawano | Junya Kawano |
 Koji OhkuraKonno | Konno |
 Jiro SatoNakayama | Nakayama |
 Tsuyoshi MuroBB - Fukuda | BB - Fukuda |
 BeckyBecky | Becky |
 Cunning TakeyamaCunning Takeyama | Cunning Takeyama |
 Kenji KawaharaNot listed | Not listed |
 Saki HagiyamaNot listed | Not listed |
| RRyô IwataNot listed | Not listed |
| YYoshihiko MurayamaNot listed | Not listed |
 Hiroyuki YamamotoNot listed | Not listed |