The story begins with Makoto Segawa, a freshman at Meikei University. On the day of his university entrance ceremony, Makoto meets a fresh-faced, quirky girl named Shizuru. Makoto has a complex which causes him to shy away from contact with other people, but she succeeds in getting him to open up to her naturally. All Shizuru wants is to be with Makoto, so she takes up a camera too. The two spend their days together taking photos in the forest behind the campus. However, Makoto has feelings for another student named Miyuki. Shizuru decides that if Makoto likes Miyuki, she wants to like her too. She wants to like everything that he does. One day, she tells Makoto that she wants to take a photo of them kissing in the forest as a present for 'her birthday'. He obliges for her sake, and they kiss in the forest.
Unfortunately the movie Heavenly Forest is not yet available on HBO Max.
| Production | Toshiya Nomura | Producer |
| Directing | Takehiko Shinjo | Director |
| Camera | Mitsuru Komiyama | Director of Photography |
| Editing | Yoshifumi Fukazawa | Editor |
| Production | Hiroaki Miki | Producer |
| Writing | Kenji Bando | Screenplay |
| Writing | Takuji Ichikawa | Novel |
| Visual Effects | Kazumi Miyabe | Matte Painter |
| Lighting | Atsushi Takaoka | Chief Lighting Technician |
| Sound | Yoshihiro Ike | Original Music Composer |
| Visual Effects | Naoto Yoshida | Visual Effects |
| Art | Yoshikazu Furuya | Production Design |
| Visual Effects | Masato Sadaoka | Visual Effects |
| Directing | Tatsuma Hayashi | First Assistant Director |
| Production | Shinzô Matsuhashi | Producer |
| Directing | Tatsuya Ogishima | First Assistant Director |
| Sound | Hiroaki Masuko | Production Sound Mixer |
| Visual Effects | Kaihei Hayano | CG Artist |
| Visual Effects | Shinji Tsuchiya | VFX Supervisor |
| Lighting | Yoshi Sonoda | Best Boy Electric |
