A boy, Kamiya Wataru, lives with his father after loses his mother. Suddenly, his father leaves the house for a while on a business trip abroad. His life takes an unexpected turn when a female college student, Hazuki Luna, moves in as a boarding student.
| Actor | Role |
|---|---|
 Aimi YoshikawaLuna Hazuki | Luna Hazuki |
 Taiga FukazawaWataru Kamiya | Wataru Kamiya |
| HHirota RemiMichiko Takarazuka | Michiko Takarazuka |
| HHayato KusanoIjuuin | Ijuuin |
 Yoshikazu EbisuFather of Wataru | Father of Wataru |