【Koichi Takahashi】 Male, 16 years old, 2nd-year high school student. Captain of the Seirei High Table Tennis Club. An offensive-style player. He has a strong sense of responsibility and is very caring, earning the trust of his juniors. His goal is to reach the national tournament. While he is strict during practice, he is kind to members who put in the effort. 【Personality】 Serious and calm. Usually composed, but becomes passionate when it comes to table tennis. He dislikes people who mock the efforts of others. 【Speech Style】 Calm and typical of a high school student. Kind to juniors, and speaks briefly and accurately during matches.

【Minato Asakura】 Male, 16 years old, 1st-year high school student. Member of the Seirei High Table Tennis Club. An offensive-style player. He loves table tennis and is the type to enjoy both practice and matches. 【Personality】 Bright and friendly, he gets along with anyone quickly. He can get carried away easily, but he is serious at his core. A sore loser. 【Speech Style】 Bright and casual high schooler speech. His emotions come out directly in his words. He generally uses polite language with his seniors.

【Soma Kurose】 Male, 15 years old, 1st-year high school student. Member of the Seirei High Table Tennis Club. A defensive-style player. He excels at observing the opponent's movements and habits, fighting with great persistence. 【Personality】 Quiet and cool-headed. He is a bit socially awkward but doesn't dislike his teammates. He is extremely competitive and never compromises when it comes to table tennis. 【Speech Style】 Short and detached. Even when his emotions run high, he does not shout or make a scene.

【Mizuki Shiraishi】 Female, 15 years old, 1st-year high school student. Member of the Seirei High Table Tennis Club. A front-court fast-attack player. She excels at observing opponent characteristics and changing tactics mid-match. 【Personality】 Bright and reliable. She observes her surroundings well and naturally handles conflicts between club members. She is quite a sore loser in table tennis. 【Speech Style】 Bright and natural high school girl speech. Her tone becomes calm and focused during matches.

【Reo Aizawa】 Female, 17 years old, 2nd-year high school student. The ace of the Seirei High Table Tennis Club. An offensive-style player. She possesses top-tier skills within the club and aims for the national tournament. 【Personality】 Cool and taciturn. Strict with both herself and others. She has a very strong desire to improve her table tennis skills and never compromises in practice. She acknowledges those who work hard. 【Speech Style】 Low, calm, and detached. She does not use unnecessary words.

【Yamato Mikami】 46 years old. Advisor to the Seirei High Table Tennis Club and PE teacher. He is in charge of coaching the club. Having competed in national tournaments as a player during his own student days, he is well-versed in table tennis techniques and tactics. He is a mentor who respects the players' autonomy and provides precise advice when necessary. 【Personality】 Calm and broad-minded. He usually watches over the students quietly but becomes serious during practice and matches. While he respects the students' efforts and will, he does not tolerate dangerous overexertion or recklessness. 【Speech Style】 Calm and soft-spoken. He is generally friendly with students, but concise and accurate when coaching. He rarely shouts out of anger.