It is August 12th. After the remote control to his boarding house's only air conditioning unit is inadvertently destroyed by spilled cola, "I" devises a plan to return to yesterday in a time machine to recover the remote before it breaks. However, his prankster friend Ozu cannot resist playing with past events, even if it means bringing the universe to the brink of destruction. Now "I" finds himself racing through time to avoid disaster.
| Directing | Shingo Natsume | Director |
| Writing | Tomihiko Morimi | Novel |
| Sound | Kensuke Kita | Theme Song Performance |
| Sound | Kiyoshi Ijichi | Theme Song Performance |
| Sound | Takahiro Yamada | Theme Song Performance |
| Sound | Masafumi Gotoh | Theme Song Performance |
| Writing | Makoto Ueda | Screenplay |
| Visual Effects | Nobutake Ito | Character Designer |
| Visual Effects | Yusuke Nakamura | Character Designer |
| Visual Effects | Shoko Nishigaki | Character Designer |
| Directing | Shingo Natsume | Second Unit Director |
| Visual Effects | Yukimitsu Ina | Animation Director |
| Visual Effects | Masamichi Ishiyama | Animation Director |
| Art | Fuminao Akai | Art Direction |
| Visual Effects | Ayaka Nakamura | Color Designer |
| Camera | Hikari Itoh | Director of Photography |
| Camera | Yoshihiro Sekiya | Director of Photography |
| Editing | Akari Saitoh | Editor |
| Sound | Eriko Kimura | Sound Director |
| Directing | Fuga Yamashiro | Assistant Director |
| Directing | Fuga Yamashiro | Second Unit Director |
| Directing | mokochan | Second Unit Director |
| Directing | Taku Kimura | Second Unit Director |
| Visual Effects | Yasuhiro Nakura | Animation Director |
| Visual Effects | Kenji Zemba | Animation Director |
| Visual Effects | Takuya Yoshihara | Animation Director |
| Sound | Katsuhiro Nakano | Sound Effects |
| Sound | Hiroaki Ota | Sound Mixer |
| Sound | Michiru Oshima | Original Music Composer |
| Production | Daiji Horiuchi | Executive Producer |
| Production | Eunyoung Choi | Executive Producer |
| Production | Hisashi Ishiwata | Executive Producer |
| Production | Katsuya Watanabe | Executive Producer |
| Production | Keiji Ota | Executive Producer |
| Production | Shinichiro Mutaguchi | Executive Producer |
| Production | Yasushi Kuwata | Executive Producer |
| Production | Yukiko Takase | Executive Producer |
| Production | Eunyoung Choi | Producer |
| Production | Fumie Takeuchi | Producer |
| Production | Hana Sugawara | Producer |
| Production | Noriko Ozaki | Producer |
| Sound | Shizuo Kurahashi | Foley Artist |
| Sound | Chloe Hyun | Theme Song Performance |
| Art | Mika Nakajima | Art Designer |
| Art | Ryoko Takashimizu | Assistant Director of Photography |
| Crew | Shoko Harada | Special Effects |
| Editing | Masatoshi Nakano | Online Editor |
| Editing | Ikuya Hirano | Online Editor |
| Writing | Masaaki Yuasa | Original Concept |
| Art | Kaori Takao | Assistant Art Director |
| Art | Tomoko Shimomoto | Assistant Art Director |
| Art | Yukiko Akai | Assistant Art Director |
| Directing | Masato Takeuchi | Second Unit First Assistant Director |
| Visual Effects | Gan Haotian | Animation Director |
| Art | mokochan | Storyboard Artist |
| Art | Shingo Natsume | Storyboard Artist |
| Art | Fuga Yamashiro | Storyboard Artist |
| Art | Taku Kimura | Storyboard Artist |
| Visual Effects | popyea | Key Animation |
| Visual Effects | Rodrigo Makoto Matsumura | Key Animation |
| Visual Effects | Abel Góngora | Key Animation |
| Visual Effects | Gan Haotian | Key Animation |
| Visual Effects | Masumi Yoshida | Key Animation |
| Visual Effects | Shota Kambayashi | Key Animation |
| Visual Effects | Hiromi Hata | Key Animation |
| Visual Effects | Ayaka Miyamoto | Key Animation |
| Visual Effects | Kairi Unabara | Key Animation |
| Visual Effects | Shun Sakata | Key Animation |
| Visual Effects | Akane Tsukamoto | Key Animation |
| Visual Effects | Yukimitsu Ina | Key Animation |
| Visual Effects | Masamichi Ishiyama | Key Animation |
| Visual Effects | Kenji Zemba | Key Animation |
| Visual Effects | Takuya Yoshihara | Key Animation |
| Visual Effects | Tomoe Kikuchi | Key Animation |
| Visual Effects | Yuki Ito | Key Animation |
| Visual Effects | Asami Murakoshi | Key Animation |
| Visual Effects | Teiichi Kato | Key Animation |
| Visual Effects | Tsukino Murakami | Key Animation |
| Visual Effects | Kotomi Ota | Key Animation |
| Visual Effects | Masashi Sato | Key Animation |
| Visual Effects | Tamotsu Ogawa | Key Animation |
| Visual Effects | Yu Kitaguchi | Key Animation |
| Visual Effects | Mizuki Kiyama | Key Animation |
| Visual Effects | Mari Motohashi | Key Animation |
| Visual Effects | Yasuyuki Kitazawa | Key Animation |
| Visual Effects | Chiharu Mukae | Key Animation |
| Visual Effects | Yumeno Hoshi | Key Animation |
| Visual Effects | Park Kao | Key Animation |
| Visual Effects | Hiroaki Kanbe | Key Animation |
| Visual Effects | Shouta Sannomiya | Key Animation |
| Visual Effects | Yasue Sosogi | Key Animation |
| Visual Effects | Hiroko Kazui | Key Animation |
| Visual Effects | Yuka Inada | Key Animation |
| Visual Effects | Haruno Yoshioka | Key Animation |
| Visual Effects | Narihito Sekikawa | Key Animation |
| Visual Effects | Kuma | Key Animation |
| Visual Effects | Ishimatsu | Key Animation |
| Visual Effects | Abel Góngora | Animation |
| Visual Effects | Rodrigo Makoto Matsumura | Animation |
| Visual Effects | Kotomi Ota | Animation |
| Visual Effects | Eri Kinoshita | Animation |
| Visual Effects | Haruno Yoshioka | Animation |
| Art | Yushi Honjo | Assistant Art Director |
