Hayato, a boy in the 6th grade, hides the secret that he can't swim. Every summer, he pretends to be sick, so he could avoid school swimming tournaments. But, as it is the last year in the elementary school, he can't escape from swimming practice and is forced to participate.
| Actor | Role |
|---|---|
| KKyôichi MikuriyaNot listed | Not listed |
| KKazuya NakajimaNot listed | Not listed |
 Karen MiyazakiNot listed | Not listed |
 Nao MatsushitaNot listed | Not listed |
 Takaaki EnokiNot listed | Not listed |
 Michiko HadaNot listed | Not listed |
 Eiki KitamuraNot listed | Not listed |
 Takashi KobayashiNot listed | Not listed |
| AAyane OmoriNot listed | Not listed |
| KKent TakahashiNot listed | Not listed |
 Mariko TsutsuiNot listed | Not listed |
 Masahiro TakashimaNot listed | Not listed |
| HHiroto YoshimitsuNot listed | Not listed |
| SSonomi HoshinoNot listed | Not listed |