In een wereld waar mensen zegevierden in een grote oorlog, verzegelden Kai-bewakers crypten met daarin hun vijanden. Maar wanneer ‘World Rebirth’ de geschiedenis overschrijft, komt hij terecht in een alternatieve realiteit waarin de mensheid de oorlog heeft verloren en hij door iedereen die hij kent, is vergeten. Nu moet deze verloren held opstaan om het evenwicht in de wereld te herstellen!
Nee, helaas is なぜ僕の世界を誰も覚えていないのか？ nog niet beschikbaar op Netflix in Nederland.
| Directing | 南川達馬 | Series Director |
| Writing | 杉澤悟 | Series Composition |
| Visual Effects | 加藤裕美 | Character Designer |
| Sound | Unlucky Morpheus | Theme Song Performance |
| Art | neco | Original Series Design |
| Visual Effects | neco | Character Designer |
| Writing | 細音啓 | Novel |
| Sound | 山本幹宗 | Theme Song Performance |
| Sound | 中嶋イッキュウ | Theme Song Performance |
| Sound | 浜崎容子 | Theme Song Performance |
| Sound | 松永天馬 | Theme Song Performance |
| Sound | おおくぼけい | Theme Song Performance |
| Writing | 松永天馬 | Lyricist |
| Sound | 浜崎容子 | Music Arranger |
| Sound | おおくぼけい | Music Arranger |
| Sound | 松永天馬 | Music Arranger |
| Sound | 黒瀬圭亮 | Theme Song Performance |
| Sound | 黒瀬圭亮 | Music Arranger |
| Writing | 石据カチル | Lyricist |
| Sound | 石据カチル | Theme Song Performance |
| Writing | Fuki | Lyricist |
| Sound | Fuki | Theme Song Performance |
| Sound | 紫煉 | Theme Song Performance |
| Sound | 紫煉 | Music Arranger |
| Sound | YURiCa/花たん | Vocals |
| Sound | Fuki | Vocals |
| Sound | 仁耶 | Theme Song Performance |
| Sound | Jill | Theme Song Performance |
| Sound | Fumiya Morishita | Theme Song Performance |
| Sound | Hiroki Ogawa | Theme Song Performance |
| Sound | Hiroyuki Ogawa | Theme Song Performance |
| Art | ありかん | Original Series Design |
| Visual Effects | ありかん | Character Designer |
| Writing | ありかん | Comic Book |
| Sound | 紫煉 | Main Title Theme Composer |
| Sound | 中嶋イッキュウ | Main Title Theme Composer |
| Sound | 山本幹宗 | Main Title Theme Composer |
| Sound | 浜崎容子 | Main Title Theme Composer |
| Sound | 黒瀬圭亮 | Main Title Theme Composer |
| Art | 田中比呂人 | Prop Designer |
| Art | 宮本実生 | Art Direction |
| Visual Effects | 鈴木ようこ | Color Designer |
| Visual Effects | 濱村敏郎 | 3D Director |
| Camera | 杉山大樹 | Director of Photography |
| Editing | 仙土真希 | Editor |
| Sound | 明田川仁 | Sound Director |
| Sound | 安田明祐 | Original Music Composer |
| Sound | 寿福知之 | Music Producer |
| Production | 川浪彩奈 | Producer |
| Production | 真鍋義朗 | Producer |
| Production | 曹聡 | Producer |
| Production | 松井優子 | Producer |
| Production | 松村尚 | Producer |
| Production | 新倉俊哉 | Producer |
| Production | 轟豊太 | Producer |
| Production | 兼田健一郎 | Producer |
| Production | 小澤文啓 | Producer |
