Het is 12 augustus. Nadat de afstandsbediening van de airconditioning in zijn pension per ongeluk kapotgaat door het morsen van een glas cola, bedenkt 'ik' een plan om met een tijdmachine terug te keren naar gisteren en de afstandsbediening terug te halen voordat die kapotgaat. Zijn vriend Ozu kan het echter niet laten om met het verleden te spelen, zelfs niet als dat betekent dat het universum op de rand van de afgrond wordt gebracht. Nu moet 'ik' door de tijd racen om een ramp te voorkomen.
| Writing | Tomihiko Morimi | Novel |
| Directing | Shingo Natsume | Series Director |
| Sound | Kensuke Kita | Theme Song Performance |
| Sound | Takahiro Yamada | Theme Song Performance |
| Sound | Kiyoshi Ijichi | Theme Song Performance |
| Sound | Masafumi Gotoh | Theme Song Performance |
| Writing | Makoto Ueda | Series Composition |
| Visual Effects | Shoko Nishigaki | Character Designer |
| Visual Effects | Yusuke Nakamura | Character Designer |
| 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 |
| Sound | Katsuhiro Nakano | Sound Effects |
| Writing | Masaaki Yuasa | Original Concept |
| Art | Mika Nakajima | Art Designer |
| Art | Ryoko Takashimizu | Assistant Director of Photography |
| Editing | Masatoshi Nakano | Online Editor |
| Editing | Ikuya Hirano | Online Editor |
| Sound | Shizuo Kurahashi | Foley Artist |
| Sound | Hiroaki Ota | Sound Mixer |
| Sound | Michiru Oshima | Original Music Composer |
| Production | Yasushi Kuwata | Executive Producer |
| Production | Daiji Horiuchi | Executive Producer |
| Production | Shinichiro Mutaguchi | Executive Producer |
| Production | Eunyoung Choi | Executive Producer |
| Production | Keiji Ota | Executive Producer |
| Production | Katsuya Watanabe | Executive Producer |
| Production | Hisashi Ishiwata | Executive Producer |
| Production | Yukiko Takase | Executive Producer |
| Production | Noriko Ozaki | Producer |
| Production | Hana Sugawara | Producer |
| Production | Fumie Takeuchi | Producer |
| Production | Eunyoung Choi | Producer |
| Visual Effects | Nobutake Ito | Character Designer |
| Visual Effects | mokochan | Opening/Ending Animation |
| Visual Effects | Asami Murakoshi | Opening/Ending Animation |
| Visual Effects | Gan Haotian | Opening/Ending Animation |
| Visual Effects | Kenji Zemba | Opening/Ending Animation |
| Visual Effects | Shun Sakata | Opening/Ending Animation |
| Sound | Chloe Hyun | Theme Song Performance |
