Kushida, Kikyou

She boasts tremendous popularity among men and women as the D class' idol. She aims to be friends with everyone not just in D class. She wants to get along well with her classmate, Horikita.

She hates Horikita because there is a possibility she knows about her middle school past. To fulfill Ayanokoji's condition for being thrown into a high-stakes bet between Horikita and herself, she reveals that her desire to help everyone is truly a desire for recognition. In addition, she keeps the darkest secrets of her classmates in the event she needs to use those secrets against them.

(Source: Official site)