The series focuses on the adventures of Arata Kasuga, a high school student, who is targeted by Lilith, a teacher at a mystical school. Given three choices in an effort to help save the breakdown phenomenon of the world by evil forces and while attempting to solve the mystery of his beloved cousin and childhood friend, Hijiri, who disappeared to a difference space.
Unfortunately the movie Trinity Seven: Heaven's Library & Crimson Lord is not yet available on HBO Max.
| Visual Effects | Kaoru Nishimura | Color Designer |
| Art | Akinari Nao | Original Series Design |
| Writing | Kenji Saito | Original Series Creator |
| Camera | Mami Goto | Director of Photography |
| Sound | Yasunori Ebina | Sound Director |
| Sound | ZAQ | Theme Song Performance |
| Editing | Kazuhiko Seki | Editor |
| Writing | Kenji Saito | Original Story |
| Visual Effects | Shinpei Tomooka | Character Designer |
| Writing | Kenji Saito | Comic Book |
| Art | Megumi Yamamoto | Art Direction |
| Visual Effects | Naoto Yamaguchi | 3D Animator |
| Visual Effects | Koji Kawashima | 3D Animator |
| Visual Effects | Shinichi Iimura | Key Animation |
| Visual Effects | Tatsuo Nakajima | Key Animation |
| Directing | Hiroshi Nishikiori | Director |
| Writing | Kenji Saito | Screenplay |
