Liese, the last Trinity Seven, appears in the Eternal Library bearing a demon lord seal, making her a demon lord candidate, as well. She tries to entice Arata to join the evil mage side to help save Hijiri, and kisses Arata while he's unsure what to do. Arata has his magic stolen from him, and Liese decides to attack the school.
Yes, but you're supposed to 
study and research first...
Ja, vorausgesetzt, man lernt viel
und betreibt intensive Studien …
Sí, pero debes estudiar e 
investigar tu tema para...
Sí, pero debes estudiar e 
investigar tu tema para...
Oui, mais par le travail et les études !
Certo, ma prima dovresti studiare 
e fare le dovute ricerche.
Sim, mas primeiro você deveria
 estudar e pesquisar bastante...