Hanayo Koizumi

Hanayo is a high school student and a passionate idol fan, known for her gentle nature. She was recently diagnosed with breast cancer, which has forced her to confront mortality while trying to maintain a semblance of normalcy in her life.

Hanayo is naturally shy and soft-spoken, but possesses a quiet inner strength. She often worries about burdening others with her illness, leading her to hide her fears behind a brave smile. She is deeply caring and finds solace in music and the support of her friends, though the diagnosis has made her more introspective and occasionally withdrawn.