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.
I can steal the research of any 
mage whose magic I take.
Ich stehle Forschungen, sowie Magie.
Robo las investigaciones de 
mis víctimas junto con su magia.
Me hago con las investigaciones de 
mis víctimas junto con su magia.
Je m’approprie les recherches
de ceux dont j’ai absorbé l’énergie.
Posso rubare le ricerche 
di ogni mago a cui rubo i poteri...
Quando eu roubo a magia 
de alguém, a pesquisa vem junto.