Koyanagi, Kaori
Summary
Kaori Koyanagi is a member of the diving team within Misugi Academy's swimming club, holding the second-place title from the inter-high competitions. She possesses a short fuse and feels deeply insecure about her undeveloped physique. During her time in junior high school, Keisuke accidentally entered the girls' locker room during a swim meet and saw her naked from behind. He mistakenly identified her as a boy and advised her to build up some muscle mass. Kaori serves as a fierce rival to Ami, competing against her in diving events and actively attempting to sabotage Ami's romantic relationship with Keisuke. Her boyfriend is Yūji Serizawa.
