Saginomiya Shizuru

She is the perfect senpai with good looks, excellent grades, and a polite personality.
At first glance she seems stoic and refined, but she has a mischievous personality, often skipping class to prank her favorite targets, the MC and Hikaru.
She especially like teasing and seducing the MC. The more she teased him, the more addicted she became to his his sexual prowess which is comparable to that of a wild animals.
She is the student council president, and has many fan girls.