Trinity Seven: Heavens Library & Crimson Lord

"Trinity Seven: Heavens Library & Crimson Lord" is a 2019 Japanese animated film directed by Hiroshi Nishikiori and written by Kenji Satō, based on the manga series "Trinity Seven" co-created by Satō and Akinari Nao. Serving as the second film in the series, following 2017's "Trinity Seven: The Eternal Library and the Alchemist Girl", the story follows Arata Kasuga, Lilith, and the rest of the Trinity Seven as they confront the most powerful enemy in their history: Lilith's own father, a Demon Lord. Arata, a Demon Lord candidate, faces a daunting challenge. The film opens with Arata, Lilith, Lugh, and Akio investigating a ruin when they are transported to the Sky Library. Lugh betrays the team, and Akio reveals the location is her hometown. They then encounter the Demon Lord Abyss Trinity. The film was released in Japan on March 29, 2019, and streamed by Crunchyroll internationally. The voice cast includes Yoshitsugu Matsuoka, Yumi Hara, and Aya Uchida.