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.
Unfortunately the movie The Tatami Time Machine Blues is not yet available on HBO Max.
| Writing | Tomihiko Morimi | Novel |
| Directing | Shingo Natsume | Director |
| Sound | Kensuke Kita | Theme Song Performance |
| Writing | Makoto Ueda | Screenplay |
| Visual Effects | Yusuke Nakamura | Character Designer |
| Visual Effects | Shoko Nishigaki | Character Designer |
| Sound | Takahiro Yamada | Theme Song Performance |
| Visual Effects | Nobutake Ito | Character Designer |
| Editing | Akari Saitoh | Editor |
| Art | Fuminao Akai | Art Direction |
| Camera | Hikari Itoh | Director of Photography |
| Visual Effects | Masamichi Ishiyama | Animation Director |
| Directing | Fuga Yamashiro | Assistant Director |
| Directing | Fuga Yamashiro | Second Unit Director |
| Visual Effects | Yasuhiro Nakura | Animation Director |
| Sound | Katsuhiro Nakano | Sound Effects |
| Sound | Masafumi Gotoh | Theme Song Performance |
| Visual Effects | Yukimitsu Ina | Animation Director |
| Visual Effects | Kenji Zemba | Animation Director |
| Visual Effects | Takuya Yoshihara | Animation Director |
| Directing | Shingo Natsume | Second Unit Director |
| Camera | Yoshihiro Sekiya | Director of Photography |
| Sound | Eriko Kimura | Sound Director |
| Visual Effects | Ayaka Nakamura | Color Designer |
| Directing | mokochan | Second Unit Director |
| Sound | Kiyoshi Ijichi | Theme Song Performance |
| Directing | Taku Kimura | Second Unit Director |
| Sound | Hiroaki Ota | Sound Mixer |
| Sound | Michiru Oshima | Original Music Composer |
| Production | Eunyoung Choi | Executive Producer |
| Production | Hisashi Ishiwata | Executive Producer |
| Production | Noriko Ozaki | Producer |
| Art | Yukiko Akai | Assistant Art Director |
| Art | Tomoko Shimomoto | Assistant Art Director |
| Production | Hana Sugawara | Producer |
| Crew | Shoko Harada | Special Effects |
| Production | Shinichiro Mutaguchi | Executive Producer |
| Production | Yasushi Kuwata | Executive Producer |
| Production | Daiji Horiuchi | Executive Producer |
| Production | Eunyoung Choi | Producer |
| Production | Fumie Takeuchi | Producer |
| Production | Keiji Ota | Executive Producer |
| Editing | Masatoshi Nakano | Online Editor |
| Editing | Ikuya Hirano | Online Editor |
| Writing | Masaaki Yuasa | Original Concept |
| Production | Yukiko Takase | Executive Producer |
| Art | Ryoko Takashimizu | Assistant Director of Photography |
| Art | Kaori Takao | Assistant Art Director |
| Art | Mika Nakajima | Art Designer |
| Production | Katsuya Watanabe | Executive Producer |
| Sound | Shizuo Kurahashi | Foley Artist |
| Sound | Chloe Hyun | Theme Song Performance |
| Directing | Masato Takeuchi | Second Unit First Assistant Director |
| Visual Effects | Ayaka Miyamoto | Key Animation |
| Visual Effects | Takuya Yoshihara | Key Animation |
| Visual Effects | Masashi Sato | Key Animation |
| Visual Effects | Shun Sakata | Key Animation |
| Visual Effects | Tomoe Kikuchi | Key Animation |
| Visual Effects | Asami Murakoshi | Key Animation |
| Art | mokochan | Storyboard Artist |
| Visual Effects | Kotomi Ota | Key Animation |
| Visual Effects | Abel Góngora | Animation |
| Art | Fuga Yamashiro | Storyboard Artist |
| Art | Taku Kimura | Storyboard Artist |
| Visual Effects | popyea | Key Animation |
| Visual Effects | Shota Kambayashi | Key Animation |
| Visual Effects | Yuki Ito | Key Animation |
| Visual Effects | Gan Haotian | Animation Director |
| Art | Shingo Natsume | Storyboard Artist |
| Visual Effects | Gan Haotian | Key Animation |
| Visual Effects | Hiromi Hata | Key Animation |
| Visual Effects | Kairi Unabara | Key Animation |
| Visual Effects | Masamichi Ishiyama | Key Animation |
| Visual Effects | Yukimitsu Ina | Key Animation |
| Visual Effects | Kenji Zemba | Key Animation |
| Visual Effects | Masumi Yoshida | Key Animation |
| Visual Effects | Akane Tsukamoto | Key Animation |
| Visual Effects | Mizuki Kiyama | Key Animation |
| Visual Effects | Shouta Sannomiya | Key Animation |
| Visual Effects | Chiharu Mukae | Key Animation |
| Visual Effects | Yuka Inada | Key Animation |
| Visual Effects | Kuma | Key Animation |
| Visual Effects | Yasue Sosogi | Key Animation |
| Visual Effects | Rodrigo Makoto Matsumura | Animation |
| Visual Effects | Narihito Sekikawa | Key Animation |
| Visual Effects | Ishimatsu | Key Animation |
| Visual Effects | Kotomi Ota | Animation |
| Visual Effects | Rodrigo Makoto Matsumura | Key Animation |
| Visual Effects | Abel Góngora | Key Animation |
| Visual Effects | Teiichi Kato | Key Animation |
| Visual Effects | Tsukino Murakami | Key Animation |
| Visual Effects | Hiroko Kazui | Key Animation |
| Visual Effects | Yumeno Hoshi | Key Animation |
| Visual Effects | Haruno Yoshioka | Animation |
| Visual Effects | Park Kao | Key Animation |
| Visual Effects | Hiroaki Kanbe | Key Animation |
| Visual Effects | Mari Motohashi | Key Animation |
| Visual Effects | Haruno Yoshioka | Key Animation |
| Visual Effects | Yu Kitaguchi | Key Animation |
| Visual Effects | Eri Kinoshita | Animation |
| Visual Effects | Tamotsu Ogawa | Key Animation |
| Visual Effects | Yasuyuki Kitazawa | Key Animation |
| Art | Yūshi Honjō | Assistant Art Director |
