A department manager at his company, buys a one-room apartment to have some space to himself. He signs an agreement with a young woman and has an affair with her once a week at the apartment.
| Actor | Role |
|---|---|
 Maiko KawakamiChako | Chako |
 Minori TeradaYusuke Mikuni | Yusuke Mikuni |
| SShuko HonamiWakako Mikuni | Wakako Mikuni |
| HHiroyuki WatariSotoyama | Sotoyama |
 Kaori AsôYasuko | Yasuko |
| JJunpei KusamiAmemiya | Amemiya |