Trinity Seven: Heaven's Library & Crimson Lord (2019)
- HD 1080
- Runtime: 61m.
- Status: Released
- 0
- Languages: ja
- Country: Japan
- Director: Hiroshi Nishikiori
- Stars: Aya Uchida, Ayane Sakura, Yumi Hara, Ryoka Yuzuki, Yoshitsugu Matsuoka
- keywords: magic, harem, sword fight, end of the world, dragon, parallel world, ecchi, shounen, anime
- Production_studio: Seven Arcs
- providers: Crunchyroll, Crunchyroll Amazon Channel
- The Trinity Seven: Heaven's Library & Crimson Lord is featured in the top rankings of 2019
- #53 in Top Animation of 2019
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.