Shun Fujishiro is a psychiatrist and works at a university hospital in Tokyo. He is engaged to Yayoi Sakamoto. One day in April, when he is about to marry Yayoi Sakamoto, he receives a letter from his first love Haru Iyoda. They dated 10 years ago. Suddenly, his fiancé Yayoi Sakamoto disappears.
| Writing | Genki Kawamura | Original Story |
| Directing | Tomokazu Yamada | Director |
| Camera | Keisuke Imamura | Director of Photography |
| Sound | Takeshi Kobayashi | Original Music Composer |
| Production | Kenji Yamada | Producer |
| Production | Kei Haruna | Producer |
| Production | Wakana Okamura | Producer |
| Production | Taichi Itô | Producer |
| Writing | Yuichiro Kido | Writer |
| Writing | Tomokazu Yamada | Writer |