Satomi is fine being alone until an AI named Shion joins her class with a song and a promise to make her happy. While Shion’s musical numbers and princess gowns don’t quite pass as human, her antics bring Satomi closer to four other classmates. Together, they make memories worth saving, but even our most precious data can be erased.
Unfortunately the movie Sing a Bit of Harmony is not yet available on HBO Max.
| Directing | Yasuhiro Yoshiura | Director |
| Visual Effects | Hidekazu Shimamura | Character Designer |
| Visual Effects | Kanna Kii | Character Designer |
| Sound | Ryo Takahashi | Original Music Composer |
| Visual Effects | Hidekazu Shimamura | Supervising Animation Director |
| Writing | Youhei Matsui | Lyricist |
| Visual Effects | Morimori | Key Animation |
| Writing | Yasuhiro Yoshiura | Screenplay |
| Writing | Ichirou Ookouchi | Screenplay |
| Art | Yasuhiro Yoshiura | Storyboard Artist |
| Visual Effects | Kosuke Yoshida | Key Animation |
| Visual Effects | Naoki Hiramura | Key Animation |
| Visual Effects | Sayoko Shinohara | Key Animation |
| Visual Effects | Momoko Nagakawa | Lead Animator |
| Visual Effects | Yuki Suzuki | Key Animation |
| Visual Effects | Yoko Ito | Key Animation |
| Visual Effects | Tsutomu Hashizume | Key Animation |
| Visual Effects | Daichi Nakajima | Key Animation |
| Visual Effects | Takumi Oonuki | Key Animation |
| Visual Effects | Mika Takahashi | Key Animation |
| Visual Effects | Saori Hosoda | Key Animation |
| Visual Effects | Noriko Onishi | Key Animation |
| Visual Effects | Yukihiro Urata | Key Animation |
| Visual Effects | Hiroyasu Oda | Key Animation |
| Visual Effects | Haruto Takahashi | Key Animation |
| Visual Effects | Maki Fukui | Key Animation |
| Visual Effects | Tomohiro Yamamoto | Key Animation |
| Visual Effects | Akitoshi Yoshino | Key Animation |
| Visual Effects | Yoshiko Takemoto | Key Animation |
| Visual Effects | Mayumi Nakamura | Key Animation |
| Visual Effects | Ken Takahashi | Key Animation |
| Visual Effects | Yui Ushio | Key Animation |
| Visual Effects | Yoshifumi Terai | Key Animation |
| Visual Effects | Masaaki Yamamoto | Key Animation |
| Visual Effects | Haruka Tsubata | Key Animation |
| Visual Effects | Kouta Mori | Key Animation |
| Visual Effects | Daisuke Mataga | Key Animation |
| Visual Effects | Tomohiro Kamitani | Key Animation |
| Visual Effects | Takamitsu Satou | Key Animation |
| Visual Effects | Ryuuta Yanagi | Key Animation |
| Visual Effects | Naoto Nakamura | Key Animation |
| Visual Effects | Masakazu Yoshimoto | Key Animation |
| Visual Effects | Kanae Fukumoto | Key Animation |
| Visual Effects | Shizuka Izumi | Key Animation |
| Visual Effects | Chiho Nagasaki | Key Animation |
| Visual Effects | Moe Fujii | Key Animation |
| Visual Effects | Kota Moroishi | Key Animation |
| Visual Effects | Yuriko Chiba | Key Animation |
| Visual Effects | Eiji Nakada | Key Animation |
| Visual Effects | Kazunori Iwakura | Key Animation |
| Visual Effects | Momoko Nagakawa | Animation Director |
| Visual Effects | Haruna Gohzu | Animation Director |
| Visual Effects | Haruna Gohzu | Key Animation |
| Visual Effects | Momoko Nagakawa | Key Animation |
| Visual Effects | Yurika Sako | Animation Director |
| Visual Effects | Yurika Sako | Key Animation |
| Art | Makoto Yoshigaki | Prop Designer |
| Art | Yoko Ito | Prop Designer |
| Visual Effects | Mika Akitaka | Mechanical Designer |
| Visual Effects | Mika Akitaka | Key Animation |
| Production | Seiichi Shirato | Researcher |
| Sound | Yoshikazu Iwanami | Sound Director |
| Art | Yuji Kaneko | Art Direction |
| Directing | Tetsuro Tanaka | Second Unit Director |
| Directing | Yasuhiro Yoshiura | Second Unit Director |
| Crew | Makoto Yoshigaki | Special Effects |
| Visual Effects | Tetsuro Tanaka | CGI Director |
| Camera | Yoshio Ookouchi | Director of Photography |
| Visual Effects | Mayumi Tanahashi | Color Designer |
| Writing | Yasuhiro Yoshiura | Original Story |
