The film's story begins when Arata inadvertently touches "Hermes Apocrypha," Lilith's Grimoire. Suddenly, he is enveloped by a bright white light, and a girl appears before him. She calls herself Lilim, and treats both Arata and Lilith as her parents. At the same time she appears, something changes in the world. The forbidden Eternal Library awakens. In the Library is sealed the ultimate culmination of Alchemy, the White Demon Lord. The White Demon Lord plots to eliminate Arata and the Trinity Seven to usurp the position of Demon Lord. Bristling with untold power, the White Demon Lord attacks Arata, and triggers a desperate crisis where Arata and the Trinity Seven must save the world in this last battle.
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| Art | Shinpei Tomooka | Storyboard Artist |
| Art | Hiroshi Nishikiori | Storyboard Artist |
| Art | Maki Kodaira | Storyboard Artist |
| Writing | Kenji Saito | Screenplay |
| Writing | Kenji Saito | Comic Book |
| Writing | Kenji Saito | Original Series Creator |
| Writing | Kenji Saito | Original Story |
| Art | Akinari Nao | Original Series Design |
| Visual Effects | Shinpei Tomooka | Character Designer |
| Art | Kinichi Okubo | Art Direction |
| Art | Takuji Jizomoto | Art Designer |
| Sound | Yasunori Ebina | Sound Director |
| Editing | Kazuhiko Seki | Editor |
| Visual Effects | Kaoru Nishimura | Color Designer |
| Sound | ZAQ | Theme Song Performance |
| Visual Effects | Yoko Iizuka | Key Animation |
| Visual Effects | Shigenori Awai | Key Animation |
| Visual Effects | Hirofumi Onodera | Key Animation |
| Visual Effects | Eiichi Tokura | Key Animation |
| Visual Effects | Yuya Kishi | Key Animation |
| Visual Effects | Yumie Wada | Key Animation |
| Visual Effects | Yukari Kobayashi | Key Animation |
| Visual Effects | Takenori Tsukuma | Key Animation |
| Visual Effects | Hideo Amemiya | Key Animation |
| Visual Effects | Hidetoshi Ōmori | Key Animation |
| Visual Effects | Hidenori Miyahara | Key Animation |
| Visual Effects | Arisa Kajiyama | Key Animation |
| Visual Effects | Takuo Tominaga | Key Animation |
| Art | Chigai Okado | Prop Designer |
| Directing | Hiroshi Nishikiori | Director |
| Visual Effects | Yasuhiro Moriki | Creature Design |
