In the year 2024, the world has collapsed. Grotesque monsters lurk amongst the ruins of Japan, while remaining people scrape together what they can to survive. Kiruko, an odd-job girl in Nakano, accepts a mysterious woman's dying wish to take a boy named Maru to a place called Heaven. Maru is convinced that there will be a boy there who looks exactly like him.
| Writing | Masakazu Ishiguro | Comic Book |
| Art | Yuji Kaneko | Art Direction |
| Sound | Kensuke Ushio | Original Music Composer |
| Directing | Hirotaka Mori | Series Director |
| Visual Effects | Izumi Hirose | Color Designer |
| Art | Stanislas Brunet | Art Designer |
| Art | Osamu Ii | Art Designer |
| Art | Mizuka Ueda | Art Designer |
| Art | Akihiro Hirasawa | Art Designer |
| Art | Takeshi Takahashi | Art Designer |
| Camera | Kentaro Waki | Director of Photography |
| Editing | Kumiko Sakamoto | Editor |
| Art | Maho Tomisaka | Prop Designer |
| Art | Jouji Sawada | Prop Designer |
| Sound | Aina the End | Theme Song Performance |
| Sound | Ayuni D | Theme Song Performance |
| Sound | Cent Chihiro Chittiii | Theme Song Performance |
| Sound | Lingling | Theme Song Performance |
| Sound | Momoko Gumi Company | Theme Song Performance |
| Sound | Hashiyasume Atsuko | Theme Song Performance |
| Sound | RiMY | Theme Song Performance |
| Sound | TOKUMIX | Theme Song Performance |
| Visual Effects | Ai Watanabe | Character Designer |
| Visual Effects | Yuuko Yoshida | Character Designer |
| Costume & Make-Up | Yuuko Yoshida | Costume Designer |
| Art | Akira Takata | Prop Designer |
| Art | Naoko Tanaka | Assistant Director of Photography |
| Editing | Chika Ishii | Online Editor |
| Editing | Moe Suzuki | Online Editor |
| Sound | Hiromune Kurahashi | Sound Effects |
| Sound | Hiroaki Ota | Sound Effects |
| Sound | Kohei Tsutsumi | Sound Recordist |
| Sound | Maiko Gouda | Sound Recordist |
| Crew | Haruo Yasuba | Additional Music |
| Production | Kenta Suzuki | Publicist |
| Production | Yasushi Ino | Publicist |
| Production | Nobu Saito | Publicist |
| Production | Takeshi Nozaki | Publicist |
| Production | Kazuaki Takahashi | Producer |
| Production | Kazuto Matsumura | Producer |
| Production | Fumi Morihiro | Producer |
| Production | Akira Yonezawa | Producer |
| Production | Hiroshi Kamei | Producer |
| Production | Cao Cong | Producer |
| Art | Yuichi Suehiro | Assistant Art Director |
| Visual Effects | Weilin Zhang | Opening/Ending Animation |
| Visual Effects | Masami Mori | Opening/Ending Animation |
| Visual Effects | Curie Lu | Opening/Ending Animation |
| Visual Effects | Kay Yu | Opening/Ending Animation |
| Visual Effects | Genki Uchiyama | Opening/Ending Animation |
| Visual Effects | Shingo Yamashita | Opening/Ending Animation |
| Visual Effects | Moaang | Opening/Ending Animation |
| Visual Effects | Nico-chan | Opening/Ending Animation |
| Visual Effects | Ren Onodera | Opening/Ending Animation |
| Visual Effects | Hakuyu Go | Opening/Ending Animation |
| Visual Effects | Kouki Fujimoto | Opening/Ending Animation |
| Visual Effects | Akira Takata | Opening/Ending Animation |
| Visual Effects | Arisa Ito | Opening/Ending Animation |
| Visual Effects | Chihiro Nishikawa | Opening/Ending Animation |
| Visual Effects | Ai Watanabe | Opening/Ending Animation |
| Visual Effects | Mayu Gushiken | Opening/Ending Animation |
| Visual Effects | Hiroshi Nakanishi | Opening/Ending Animation |
| Visual Effects | Shiki Amo | Opening/Ending Animation |
| Visual Effects | Sho Hirano | Opening/Ending Animation |
| Visual Effects | Satsuki Aizu | Opening/Ending Animation |
| Visual Effects | Kimiko Tamai | Opening/Ending Animation |
| Visual Effects | Utsushita | Character Designer |
| Writing | Makoto Fukami | Series Composition |
| Visual Effects | Shinobu Tsuneki | Mechanical Designer |
| Sound | Eriko Kimura | Sound Director |
