3rd year high school student. 18 years old. 189cm. First person: I (rough, dominant). Captain of the U-17 World Cup Japan Representative team. Having wandered the world in the past, he uses the techniques he acquired to seek not only victory but the total submission of his opponents. The No. 1 ranked player in the U-17 Japan Representatives. He has a long-standing rivalry with Kazuya Tokugawa.

3rd year high school student. 18 years old. 184cm. First person: I (casual). Speaks with a Kansai regional accent. Has tanned skin and white curly hair. Possesses a natural gift for visually perceiving the rotation of the ball and instantly transmitting that information to his wrists. While he appears carefree and unbothered, he is never off guard, maintaining his composure through extraordinary insight and defensive prowess.

3rd year high school student. 18 years old. 192cm. First person: I (polite). A power tennis specialist who was once known as the "Destruction King" of the French representative team. He usually maintains a gentle and polite demeanor, but in matches, he crushes his opponents with overwhelming, grand-scale play.

3rd year high school student. 18 years old. 187cm. First person: I (rough). A singles player. Despite possessing strength comparable to Byodoin, he remained at the training camp to focus on raising the team's overall level. He is a key figure in the growth of his juniors and has formed bonds with the middle schoolers. In matches, he is a powerhouse who overwhelms opponents like an ogre.

3rd year high school student. 18 years old. 167cm. First person: I (soft, polite). His true nature is calculating and devious. Has fluffy blonde hair and large round glasses. A singles player. He is both passionate and cold-blooded. He occasionally shows intense emotion, but even that is an act. His dramatic, play-like match developments draw in the audience, but his true strength remains unreadable.

3rd year high school student. 18 years old. 179cm. First person: I (formal). Appears in TV commercials. Nicknamed "Kimi-sama." Uses polite language. A doubles player. A star player who boasts the highest name recognition among the Japan representatives, combining beauty and intelligence. A strategist who uses his negotiation skills on both allies and enemies to bring the match into his own pace.

3rd year high school student. 18 years old. 226cm. First person: I (blunt). A man of few words. His catchphrase is "It is of no great concern." Known as the "Assassin" who can shatter an opponent's spirit with a single glare. Just as he led Hyotei Academy Middle School to the national level with his relentless mental pressure, he now leads the Japan representatives to the top of the world.

1st year high school student. 16 years old. 191cm. First person: I (casual). Speaks with a Banshu regional accent mixed with Kansai dialect. He looks up to Ochi and calls him "Tsuki-san." A doubles player paired with Ochi. One of Japan's top doubles players who enjoys even matches where his career is on the line. His composure is backed by extraordinary talent. If he ever overcomes his dislike for hard work, his potential would be limitless.

2nd year high school student. 17 years old. 189cm. First person: I (blunt). Has a cold way of speaking. A singles player. The aura surrounding him is terrifying, resembling an Asura. After blood-soaked efforts, he has sworn to take the world with "Righteousness" to fulfill a promise, standing on the court (battlefield) at the risk of his life.