Trinity Seven: Eternity Library to Alchemic Girl EP1 劇場版 トリニティセブン -悠久図書館と錬金術少女-

Arata inadvertently touches "Hermes Apocrypha," Lilith's Grimoire. Suddenly, he is enveloped by a bright white light, and a girl appears before him. She calls herself Lilim, and treats both Arata and Lilith as her parents. At the same time she appears, something changes in the world. The forbidden Eternal Library awakens.