One day, Katsumi's girlfriend Sakura suddenly disappears, and all his friends do not remember anything about her. In pursuit of his love, Katsumi finds himself in a parallel world of Japan in the midst of a civil war between two clans Taira and Genji.
Unfortunately the movie Genji is not yet available on HBO Max.
| Writing | Yun Kouga | Writer |
| Visual Effects | Masafumi Yamamoto | Animation Director |
| Art | Chisato Sunagawa | Art Direction |
| Writing | Ryo Yasumura | Screenplay |
| Visual Effects | Michitaka Kikuchi | Character Designer |
| Directing | Ryo Yasumura | Director |
| Crew | Go Abe | Special Effects |
| Editing | Shigeyuki Yamamori | Editor |
| Sound | Fusanobu Fujiyama | Sound Director |
| Production | Masayuki Kojima | Executive Producer |
| Editing | Kazuhiko Seki | Editor |
| Production | Michihisa Abe | Producer |
| Sound | Makoto Mitsui | Songs |
| Camera | Akihiko Takahashi | Director of Photography |
| Production | Hiroshi Ichinohe | Producer |
| Visual Effects | Satoko Shiho | Color Designer |
| Sound | Kentaro Haneda | Original Music Composer |
| Sound | Junichi Sasaki | Sound Effects |
| Directing | Nanako Shimazaki | Second Unit Director |
