Rin Misumi

Rin Misumi (三隅 倫 Misumi Rin) is the head of the disciplinary committee who dislikes Ui Wakana's love campaign and its related antics. However, she develops feelings for Hayato Izumi after he treats her nicely and helps her in a situation. She and Kei Misumi (Rin's sister) move in next door to Hayato, Rin later learns of their cohabitation from her sister causing her to become extremely jealous. In the anime, she explains that she joined the committee because she wanted to disclaim a rumor that she was seducing guys with her large breasts by emphasizing her morally pure side

Trivia

 * The name Rin means "ethics" (倫).
 * Rin's surname Misumi means "three" (三) (mi) and "corner, nook" (隅) (sumi).