Finally, the day of Mai's high school graduation has arrived. While Sakuta eagerly waits for his girlfriend, an elementary schooler who looks exactly like her appears before him. Suspicious, and for all the wrong reasons... Meanwhile, Sakuta and Kaede's father suddenly calls, saying that their mother wants to see her daughter. She was hospitalized because Kaede's condition had been too much for her to bear, so what could she possibly want now?
Unfortunately the movie Rascal Does Not Dream of a Knapsack Kid is not yet available on HBO Max.
| Art | Soichi Masui | Storyboard Artist |
| Art | Kota Michishita | Prop Designer |
| Visual Effects | Kengo Oda | CGI Director |
| Sound | Hidehiro Kawai | Original Music Composer |
| Editing | Akinori Mishima | Editor |
| Camera | Yang Xiaomu | Director of Photography |
| Visual Effects | Hazuki Tanaka | CGI Director |
| Art | Satoshi Okubo | Art Direction |
| Sound | Tsukasa Inoue | Original Music Composer |
| Visual Effects | Saya Uchiumi | 2D Artist |
| Art | Yoshinori Shiozawa | Art Designer |
| Visual Effects | Satomi Tamura | Supervising Animation Director |
| Crew | Saya Uchiumi | Special Effects |
| Sound | Ryo Kishimoto | Original Music Composer |
| Visual Effects | Asuka Yokota | Color Designer |
| Writing | Hajime Kamoshida | Novel |
| Writing | Masahiro Yokotani | Screenplay |
| Directing | Soichi Masui | Director |
| Visual Effects | Satomi Tamura | Character Designer |
| Writing | Masahiro Yokotani | Series Composition |
