Akatsuki Rino

A girl who belongs to the gymnastics club at an integrated school and is the head of the club. She is well-liked by the club members and has many friends. She also has a boyfriend and leads a fulfilling school life. She and Otoha have known each other for a long time, but because she is older than her, she often acts like an older sister. When she learns that Otoha has returned to her hometown, she is worried, but also happy to see her again. For some reason, she has an indifferent attitude toward the main character when they meet again...