After a draining December, Sakuta is quickly nearing the end of his second year of high school. Since Mai is a third-year student, they don't have much time left together before graduation rolls around. Meanwhile, his sister, Kaede, is slowly but steadily venturing outdoors again. Just as she begins to find her footing, she announces her most ambitious goal yet—attending her brother's high school! Sakuta knows better than anyone how difficult this will be for Kaede, and he's ready to support her however he can. He's just not sure if that's what's best for her...or what she really wants...
| Writing | Hajime Kamoshida | Novel |
| Visual Effects | Satomi Tamura | Character Designer |
| Writing | Masahiro Yokotani | Series Composition |
| Writing | Masahiro Yokotani | Screenplay |
| Directing | Souichi Masui | Director |
| Sound | Hidehiro Kawai | Musician |
| Sound | Ryo Kishimoto | Musician |
| Sound | Tsukasa Inoue | Musician |
| Visual Effects | Satomi Tamura | Supervising Animation Director |
| Art | Yoshinori Shiozawa | Art Designer |
| Art | Satoshi Okubo | Art Direction |
| Visual Effects | Asuka Yokota | Color Designer |
| Visual Effects | Saya Uchiumi | 2D Artist |
| Crew | Saya Uchiumi | Special Effects |
| Camera | Yang Xiaomu | Director of Photography |
| Editing | Akinori Mishima | Editor |
| Sound | Yoshikazu Iwanami | Sound Director |
| Art | Kota Michishita | Prop Designer |
| Art | Souichi Masui | Storyboard Artist |
| Art | Miyuki Kuroki | Storyboard Artist |
| Art | Toshimasa Ishii | Storyboard Artist |
| Directing | Noriyuki Nomata | Second Unit Director |
| Directing | Hidetoshi Takahashi | Second Unit Director |
| Directing | Sotaro Shimizu | Second Unit Director |
| Directing | Kakushi Ifuku | Second Unit Director |
| Visual Effects | Hibiki Yamaguchi | Key Animation |
| Visual Effects | Hazuki Tanaka | CGI Director |
| Visual Effects | Kengo Oda | CGI Director |
| Sound | Yurika Kubo | Theme Song Performance |
