Rinko Yanagigaura

Rinko Yanagigaura (柳ヶ浦 凛子) is a student of home room 3-3. She is usually seen together with Hana, and often tries to get Hana to calm down.

Trivia

 * In the webcomics she is simply referred to as "Rinko", but the author revealed her full name during a signing event.