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.
This school has seven students who 
are like boss characters in a game.
Auf dieser Schule sind sieben Leute,
die so etwas wie Boss-Charaktere darstellen.
Esta academia tiene personajes
similares a los jefes de un juego.
Esta academia tiene personajes
similares a los jefes de un juego.
Il y a sept personnes particulièrement
importantes dans cette école.
Questa scuola ha sette studentesse,
paragonabili ai boss di un videogioco.
Essa escola tem sete chefes,
 como personagens de jogo.