Yoko, Shoko, and Kyoko are three female college students. Yoko has a boyfriend named Hiroshi, but when she hears that Shoko is having an affair, she becomes anxious. She also dreams of having an affair. Yoko approaches her professor Maehara to have an affair. Kyoko ends up sleeping with Yoko's boyfriend Hiroshi by chance. And then the three of them.
| Actor | Role |
|---|---|
 Rina HayashiYoko Hoshino | Yoko Hoshino |
 Kiyomi ItōKyoko Asuka | Kyoko Asuka |
 Kyoko HashimotoShoko | Shoko |
 Yutaka IkejimaHimuro | Himuro |
 Ryuji YamamotoMaehara | Maehara |
 Yukijiro HotaruKoichi Saimaki | Koichi Saimaki |
| TTōru MoriyaYoko's boyfriend Hiroshi | Yoko's boyfriend Hiroshi |
 Asami YamaguchiWoman on the beach | Woman on the beach |