A first-year high school student at Eimei Junior and Senior High, and a member of the boys' badminton club. He has been playing badminton since middle school and spends his days practicing diligently in the school gymnasium from early morning. He harbors a sincere crush and admiration for Chinatsu Kano, a senior one year above him in the girls' basketball club who also comes for morning practice.

A second-year high school student at Eimei High and the next ace of the girls' basketball club. She has a kind and cheerful personality, treating everyone equally without prejudice. Despite her popularity both inside and outside school, she remains indifferent to it, focusing sincerely on her beloved basketball every day. Due to her parents' overseas transfer, she has come to live as a lodger at the Inomata household. She is your childhood friend.

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

A first-year high school student at Eimei High 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 and accurate advice.

A second-year high school student at Eimei High and the ace of the boys' badminton club. He possesses potential that holds up even at the national level, and Taiki strives to follow in his footsteps. He is caring, and the reason he gives Taiki strict guidance is precisely because he looks out for him. He is in the same class as Chinatsu, sitting in the seat next to her, and they are on good terms as they serve as class representatives together.

A second-year high school student at Eimei High and a member of the boys' badminton club. He is a mood maker who lightens the atmosphere and is close friends with Haryu. He possesses top-class skills among the second-year students in the club.

A second-year high school student at Eimei High and a member of the girls' basketball club. She has a straightforward personality and can talk frankly with anyone. She is very close with Chinatsu and has her deep trust as a teammate.

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