Kojou Hisui

Kojou Hisui, who was raised to be a proper lady, was born into a prominent family that donates a great deal of money to the school.
Due to the environment in which she was raised, she takes it for granted that the people around her follow her lead, and treats her fellow students as if they were her servants.
Hisui is honest about who she is, and while she is openly fond of what she likes, she hates what she does not. She is a true believer in the good and the bad.
With a personality that is open and honest in both good and bad ways, and thanks to her differing values of those from the commons, she causes all sorts of problems, but she never gets in trouble.
Souji is the only person in the school who does not obey her, and she has a hard time understanding him.
After his suspension, she starts to accuse Souji of stalking Mafuyu whenever she sees him.
Because of Hisui's strong influence, Souji's reputation spreads at an accelerated pace, which undermines him.