The mayor is found dead in the river in a small town known for its hot springs. It's assumed that he fell to his death, but his nephew just cannot understand why his uncle would have gone there by himself to begin with. When he cleans up his house, he finds his uncle's diary and tries to find out what exactly happened.
| Actor | Role |
|---|---|
 Takashi SorimachiNot listed | Not listed |
 Tae KimuraNot listed | Not listed |
 Ken IshiguroNot listed | Not listed |
 Miho ShiraishiNot listed | Not listed |
 Takeshi MasuNot listed | Not listed |
 Shihou HarumiNot listed | Not listed |
 Tarou OumiyaNot listed | Not listed |
 KitaroNot listed | Not listed |
 Toshiya SakaiNot listed | Not listed |
 Masaki KyomotoNot listed | Not listed |
 Issey OgataNot listed | Not listed |
 Mitsuko BaishoNot listed | Not listed |