From Ashen Breath

 Everyone fears Anh. Quiet falls when she enters a room. Eyes lower in her presence. Even her name is spoken with dread. She is the most severe case of demonic bloodlust in the world, and her reputation was rightly earned in blood and pain.

But Eji doesn't treat her like everyone else. He bullies her into eating regularly, makes sure she takes her meds, and keeps her fits of rage contained when she loses control. As her head of security, he's with her constantly—always attentive to her every need. She chooses to ignore how he makes her heart flutter whenever he fusses over her. There's no way she could promise not to seriously injure him in one of her fits, and he deserves a partner who won't hurt him.

It seems like fate that Anh is saved one night from a Gar by a Dr. Nguyen Thi Phuong. As it so happens, Phuong is a psychologist, and she claims she can help Anh control the demonic drive. There's just one catch: it's going to hurt.