Gabimaru regeert als de sterkste en meest meedogenloze moordenaar in zijn dorp. Maar nu bevindt hij zich in de dodencel – met maar één uitweg: het levenselixer terughalen van een sinister eiland. Verlangend naar vrijheid aanvaardt hij de uitdaging. Maar hoe zal Gabimaru deze aangrijpende zoektocht overleven, nu zijn medegevangenen strijden om dezelfde prijs en demonische beesten op de loer liggen?
| Production | 川越恒 | Line Producer |
| Art | 曽根原理恵 | Art Direction |
| Art | Kim Bin-dal | Art Designer |
| Art | 藤井祐太 | Art Designer |
| Art | Madoka Yagi | Assistant Director of Photography |
| Production | 小磯捺未 | Publicist |
| Production | 菅原雅美 | Publicist |
| Production | 三井亜寿沙 | Publicist |
| Visual Effects | 杉野信子 | Opening/Ending Animation |
| Visual Effects | 高原修司 | Opening/Ending Animation |
| Visual Effects | 首藤武夫 | Opening/Ending Animation |
| Visual Effects | たむらかずひこ | Opening/Ending Animation |
| Visual Effects | 濱中朋子 | Opening/Ending Animation |
| Visual Effects | 宮本莉奈 | Opening/Ending Animation |
| Visual Effects | 深谷悠貴 | Opening/Ending Animation |
| Visual Effects | 安食圭 | Opening/Ending Animation |
| Visual Effects | 牧田佳織 | Opening/Ending Animation |
| Visual Effects | 田中春香 | Opening/Ending Animation |
| Visual Effects | 久木晃嗣 | Opening/Ending Animation |
| Visual Effects | 髙野徹 | Opening/Ending Animation |
| Visual Effects | Satoshi Ikeda | Opening/Ending Animation |
| Visual Effects | Kaori Kishi | Opening/Ending Animation |
| Visual Effects | 吉田正幸 | Opening/Ending Animation |
| Crew | 徳田智瑛子 | Special Effects |
| Sound | 常田大希 | Theme Song Performance |
| Sound | 石若駿 | Theme Song Performance |
| Production | 小川崇博 | Line Producer |
| Production | 石井希 | Producer |
| Production | 木村誠 | Associate Producer |
| Visual Effects | 新妻大輔 | Creature Design |
| Visual Effects | 吉田正幸 | Lead Animator |
| Sound | 舩橋宗寛 | Music Producer |
| Sound | 椎名林檎 | Theme Song Performance |
| Editing | 武宮むつみ | Editor |
| Sound | えびなやすのり | Sound Director |
| Visual Effects | Miku Fukunishi | 3D Director |
| Camera | 박효규 | Director of Photography |
| Visual Effects | Fei Hung | Opening/Ending Animation |
| Visual Effects | 鎌田晋平 | Opening/Ending Animation |
| Visual Effects | のんの | Opening/Ending Animation |
| Sound | 今泉武 | Sound Recordist |
| Sound | 三井友和 | Sound Effects |
| Editing | 清原一樹 | Online Editor |
| Editing | 齋木拓斗 | Online Editor |
| Writing | 賀来ゆうじ | Original Story |
| Visual Effects | 末永絢子 | Color Designer |
| Sound | 出羽良彰 | Original Music Composer |
| Visual Effects | 久木晃嗣 | Character Designer |
| Writing | 金田一明 | Series Composition |
| Directing | 牧田佳織 | Series Director |
| Writing | 賀来ゆうじ | Comic Book |
