On the day Tōma Kamijō and Index see Academy City's space elevator, Endymion in the distance, they meet a Level 0 girl with an amazing singing voice, Arisa Meigo. As the three enjoy their time together after school, magic-user Stiyl Magnus suddenly attacks them. His target: Arisa. Why would a girl from the science side be targeted by someone from the magic side, Tōma wonders. In the chaos of Stiyl's attack, he tells Tōma, Index and Arisa that she might cause a war between the magic side and the science side.
Unfortunately the movie A Certain Magical Index: The Miracle of Endymion is not yet available on HBO Max.
| Sound | Maiko | Music |
| Production | Satoshi Fujita | Producer |
| Production | Kentaro Hattori | Producer |
| Production | Yasutaka Kimura | Producer |
| Production | Kazuma Miki | Producer |
| Production | Nobuhiro Nakayama | Producer |
| Production | Taichi Fukuda | Executive Producer |
| Production | Keisuke Iwata | Executive Producer |
| Production | Tomoyuki Miyata | Executive Producer |
| Production | Hiroshi Taguchi | Executive Producer |
| Production | James Takagi | Executive Producer |
| Production | Masaaki Tsukada | Executive Producer |
| Editing | Shigeru Nishiyama | Editor |
| Art | Satoshi Iwataki | Storyboard Artist |
| Art | Hiroshi Nishikiori | Storyboard Artist |
| Art | Koichi Chigira | Storyboard Artist |
| Crew | Kazuma Kamachi | Creator |
| Writing | Kazuma Kamachi | Story |
| Visual Effects | Ayumi Kurashima | Key Animation |
| Visual Effects | Azuma Sugawara | Key Animation |
| Visual Effects | Edo Haruma | Key Animation |
| Visual Effects | Haruna Gohzu | Key Animation |
| Visual Effects | Hidekazu Yamana | Key Animation |
| Visual Effects | Hideki Ito | Key Animation |
| Visual Effects | Hideki Tachibana | Key Animation |
| Visual Effects | Hiroshi Tomioka | Key Animation |
| Visual Effects | Hirotoshi Arai | Key Animation |
| Visual Effects | Hiroyasu Oda | Key Animation |
| Visual Effects | Kanta Suzuki | Key Animation |
| Visual Effects | Kazuma Kikuchi | Key Animation |
| Visual Effects | Kazunori Iwakura | Key Animation |
| Visual Effects | Keiichi Ishida | Key Animation |
| Visual Effects | Kenichi Takase | Key Animation |
| Visual Effects | Kiko Morifuji | Key Animation |
| Visual Effects | Kōji | Key Animation |
| Visual Effects | Kosuke Yoshida | Key Animation |
| Visual Effects | Kota Moroishi | Key Animation |
| Visual Effects | Kouichi Motomura | Key Animation |
| Visual Effects | Kouichi Sugitani | Key Animation |
| Visual Effects | Yuu Shindou | Key Animation |
| Visual Effects | Masashi Wakayama | Key Animation |
| Visual Effects | Masayuki Nonaka | Key Animation |
| Visual Effects | Mitsuru Chiba | Key Animation |
| Visual Effects | Naoyuki Konno | Key Animation |
| Visual Effects | Nozomu Abe | Key Animation |
| Writing | Hiroyuki Yoshino | Writer |
| Directing | Hiroshi Nishikiori | Director |
| Sound | Yasunori Iwasaki | Music |
| Sound | Hayato Matsuo | Music |
