An eccentric girl who is the main love interest of Onodera Punpun throughout the manga. No voice actors have been added to this character. Help improve our database by searching for a voice actor, and adding this character to their roles .

Chisa Kotegawa is a first year student at Izu University. She is the younger sister of Nanaka Kotegawa and cousin of Iori Kitahara. Though generally appearing indifferent, she is very caring and concerning to others close to her. She hates getting hit on by other guys so much she went as far as declaring Iori as her "fake" boyfriend to ward off guys. She loves diving so much that she wants to befriend anyone who is interested in diving and has ocean sounds as her music playlist.