Trinity Seven (2014)

S1E6 Dark Mage and Big Event

Liese, the final member of Trinity Seven, arrives at the Eternal Library with a demon lord seal, marking her as a candidate for demon lord status. She attempts to persuade Arata to ally with the dark mages to rescue Hijiri, kissing him while he’s caught in confusion. As Arata finds his magic taken from him, Liese makes the choice to launch an assault on the school.