Tsukasa Taira
平 つかさ
As of chapter 49-50 of the manga:
As of chapter 52 of the manga:
She is learning self-diffidence.
She is trying to find ways to SAFELY (without being killed in the process) be intimate with Yuuki. Going so far as to restrain him in a special bed (with his consent/at his request), muzzle him and have a doctor in another room able to watch them, in case he loses control and turns into a violent monster, during the act.