Haruka decides to buy a vacation home to reclaim time with her husband, who is recovering from an injury. When she visits the property to inspect it, she is led by the caretaker to the basement, where she finds an old diary. Inside is a candid account of the experiences of the diary's owner, Utako Maruyama.
| Actor | Role |
|---|---|
 Koyuki AmanoHaruka Nagura | Haruka Nagura |
| HHaruka AkinaUtako Maruyama | Utako Maruyama |
 Mayuko SasakiSatsuki Nagata | Satsuki Nagata |
| AAtsushi TsudaMasumi Nagura | Masumi Nagura |
| YYasunari KubotaMiyabi Fukuhara | Miyabi Fukuhara |
| TTomohiro OkadaKôichi Minatogawa | Kôichi Minatogawa |
| KKenji IwataniShirô Tenjin | Shirô Tenjin |
 Riri KoudaNot listed | Not listed |