A film about two boys and two girls, and how they each come to sex, each in his or her own way.
| Actor | Role |
|---|---|
 Yōko NamikawaHarumi Nakane | Harumi Nakane |
| MMasako MizukiMisa Hamada | Misa Hamada |
 Junko YashiroTomiko Tozawa | Tomiko Tozawa |
| SShozaburo SatoHiroshi Nishina | Hiroshi Nishina |
| OOsamu SakaiMorio Suganuma | Morio Suganuma |
| YYukiko TsuyamaAsako | Asako |
| YYukari YoneyamaYuka | Yuka |
 Arihiro FujimuraShoji | Shoji |
 Sachiko MeguroToyo Kuramochi | Toyo Kuramochi |
 Chiaki TsukiokaMasae Nakane | Masae Nakane |