Academy of the Black Bird. Destroy the Darkness

The Academy of the Black Bird is a place without equal.
In this dark school, exorcists are trained to protect humanity from demons. When Liif Yang wakes up in the depths of the Academy, she cannot believe what a handsome guy... named Falco explains to her: a demon possessed her shortly after plunging a dagger into her heart! Falco is enchanted by Liif...
For never before has a person been able to maintain control of their own body after a demon's attack without losing their mind.
Then the Academy makes her an offer - if she trains to become an exorcist, her freedom will be returned to her.
Falco must train her, but he doesn’t know that Liif hears a voice in her head.
 And that's not human...