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Trinity Seven: Heavens Library & Crimson Lord is a 2019 Japanese animated romantic comedy fantasy film directed by Hiroshi Nishikiori and written by Kenji Satō based on the Trinity Seven manga series, which Satō co-created with Akinari Nao. Produced by Seven Arcs and distributed by Avex Pictures, Heavens Library & Crimson Lord is the second film for the series, following The Eternal Library and the Alchemist Girl (2017), and it involves the Trinity Seven facing off against Lilith's own father. The film stars the voices of Yoshitsugu Matsuoka, Yumi Hara, Aya Uchida, Ayane Sakura, Rie Kugimiya, Yōko Hikasa, Nao Tōyama, Aya Suzaki, Tomoaki Maeno, and Shizuka Itō. Heavens Library & Crimson Lord was released in Japan on March 29, 2019.