Oriba Aka

She is a second-year student at Harusaki Gakuen.
She hates city males and is cold to the protagonist (a male), but speaks friendly to him when they are in the dormitory (female).
In contrast to her best friend Minako, she cannot do any housework or cooking, but her grades are good and she is one of the top students in her grade.
She likes cute mascot-type characters. She is especially fond of a mascot named "Sachi Ususan".

"Don't get too close, you little slut!"