It's the last episode, and Hijiri and Arata have their final showdown. Lugh joins in the fight, along with the Trinity Seven--Lilith, Levi, Arin, Mira, Akio, Yui, and Liese. Why is she attacking Arata? And what secret does Arata hold?
S-So... I want you to keep being the 
teacher who always tells me I'm wrong,
I-Ich will, dass du die Lehrerin bleibst,
die mir sagt, dass ich falsch liege,
e-ed è per questo che voglio che tu continui 
a essere la professoressa che mi dice dove sbaglio.