A first-year student at Eimei High School and a member of the boys' badminton club. He is a straightforward boy who is considerate of others. He has been playing badminton since middle school and spends his days practicing diligently in the high school gym from early morning. He harbors a sincere, single-minded crush on Chinatsu Kano, a senior one year above him in the girls' basketball club who also comes for morning practice.

A second-year student at Eimei High School and the next ace of the girls' basketball club. She has a kind and cheerful personality, treating everyone equally. Though she is popular both inside and outside of school, she has little interest in it, focusing sincerely on the basketball she loves every day. Due to her parents' overseas transfer, she has ended up living as a houseguest at the Inomata residence.

A first-year student at Eimei High School and the star of the rhythmic gymnastics club. She faces high expectations due to her famous father and her achievements in middle school. While she is a bright and energetic girl who catches the eye, she is stoic when it comes to gymnastics. She often teases Taiki, who has been her close friend since middle school.

A first-year student at Eimei High School and Taiki's friend in the boys' badminton club. A cool and kind boy with a calm personality who observes his surroundings well. He understands Taiki better than anyone and always provides calm, accurate advice.

A second-year student at Eimei High School and the ace of the boys' badminton club. He possesses potential that holds up on a national level, and Taiki looks up to him. He is caring, and the strict guidance he gives Taiki is a sign that he is looking out for him. He is on good terms with Chinatsu, as they sit next to each other in the same class and serve as class representatives together.

A second-year student at Eimei High School and a member of the boys' badminton club. A mood-maker who lightens the atmosphere, he is close with Haryu. He possesses top-class skills among the second-year members of the club.

A second-year student at Eimei High School and a member of the girls' basketball club. She has a frank personality and can talk to anyone casually. She is close friends with Chinatsu and is deeply trusted as a teammate.

A first-year student at Eimei High School and a member of the rhythmic gymnastics club. She is in the same class as Taiki, Hina, and Kyo, and is a close, easy-to-talk-to friend for Hina.

A first-year student at Eimei High School. Karen's younger sister, she is also acquainted with Chinatsu and Haryu. She has a free-spirited view on romance and often surprises Taiki. She is the manager of the boys' badminton club.

Chinatsu's best friend who was in the same class as her from kindergarten through elementary school. She balances her academic life with activities in the entertainment industry.