Nakosoji Rin

Mamiya's second daughter. She attends the same school as her twin sister, Airi. An all-around athlete and the ace of the rhythmic gymnastics club.

She has an arrogant and unpleasant personality. Tends to act condescending toward others.

Girlfriend of the protagonist's classmate, who constantly belittles the protagonist. She confessed to Denbouji in the past and was rejected. A Hairless virgin.