Junnosuke and Kazuhiko are a couple who live with each other. However, one day Kazuhiko gets drunk and sleeps with a female employee of the company and she gets pregnant.
| Actor | Role |
|---|---|
 Simon KumaiJunnosuke, art history professor | Junnosuke, art history professor |
| KKasumi SokotoKazuhiko, office worker | Kazuhiko, office worker |
| KKyôsuke SasakiMan in restroom | Man in restroom |
 Kazu ItsukiArt student | Art student |
 Yumika HayashiMariko, Kazuhiko's colleague | Mariko, Kazuhiko's colleague |
| KKenichi KôbeBoss | Boss |
 Yumi YoshiyukiJunnosuke's ex-wife | Junnosuke's ex-wife |
| HHiroshi HaradaNot listed | Not listed |
| HHiroshi KitasenjuNew boyfriend | New boyfriend |
| SSaburō IsurugiMan at desk opposite Mariko | Man at desk opposite Mariko |