[quote=Masaki Haruna]
Ria is a the happiest Sensei anyway, this yandere and Tsundere act is a part of her social skills and it's an act, tbh She is a happydere. I would rather have a sane Sensei like her than an Uchiha who is mental and psychopath.
[/quote]

Still. The way she acted around Kota is a death wish for him.