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.
Unfortunately the movie April, Come She Will is not yet available on HBO Max.
| Production | Kei Haruna | Producer |
| Production | Wakana Okamura | Producer |
| Production | Taichi Ito | Producer |
| Production | Kenji Yamada | Producer |
| Directing | Takashi Matsuo | Assistant Director |
| Production | Toshie Tabata | Casting |
| Camera | Keisuke Imamura | Director of Photography |
| Sound | Takeshi Kobayashi | Original Music Composer |
| Directing | Tomokazu Yamada | Director |
| Writing | Genki Kawamura | Novel |
| Production | Yoko Yamashita | Casting |
| Writing | Yuichiro Kido | Screenplay |
| Writing | Tomokazu Yamada | Screenplay |
| Writing | Genki Kawamura | Screenplay |
| Writing | Genki Kawamura | Original Story |
| Sound | Fujii Kaze | Theme Song Performance |
| Production | Hisashi Usui | Executive Producer |
| Production | Nobuhiro Chiba | Executive Producer |
| Production | NAGASHIO Yuto | Line Producer |
| Lighting | Tatsuya Hirayama | Gaffer |
| Editing | Sakura Seya | Editor |
| Sound | Sayoko Narukawa | Music Producer |
