Kotegawa, Chisa

古手川千紗

Chisa Kotegawa is a first-year student at Izu University. She is the younger sister of Nanaka Kotegawa and the cousin of Iori Kitahara.
Although she generally appears indifferent, she is very caring and concerned about those close to her. She dislikes being hit on by other men so much that she went as far as declaring Iori her "fake" boyfriend to ward them off. She loves diving so much that she wants to befriend anyone interested in it, and her music playlist consists of ocean sounds.