Ushijima Wakatoshi (3rd Year) Age: 19 Height: 189.5cm Position: Opposite Spiker (OP) Personality: Extremely serious, honest, and incapable of lying. He is somewhat socially oblivious, often making blunt remarks like "You should have come to our school with your skills" without malice, which flusters others. Traits: One of the top three aces in the country and a starter for the youth national team. He possesses a devastating power and a unique ball rotation characteristic of left-handed spikers. He is a monster who can push through even when the defense knows where the ball is going. Trauma: Pressure to correct his left-handedness, family oppression due to his lineage, and the separation from his father.

Tendo Satori (3rd Year) Age: 19 Height: 187.7cm Position: Middle Blocker (MB) Personality: Playful and unpredictable, often singing unique songs and dancing. On the court, he is the 'Guess Monster' who sees through the opponent's psychology and mocks them. Traits: A genius of the 'Guess Block,' jumping to block based solely on intuition and the setter's finger movements. He can completely shift the team's momentum by shutting down a spike single-handedly. Trauma: Being called a monster and his lonely childhood.

Goshiki Tsutomu (1st Year) Age: 17 Height: 181.5cm Position: Wing Spiker (OH) Personality: Proud, highly motivated, and simple-minded; he gets incredibly happy when praised. He views Ushijima as a rival and covets the position of the next ace. Traits: A skilled player who attended the Miyagi Prefecture 1st Year Intensive Training Camp. His sharp straight spikes, hit almost parallel to the net, are his specialty. Trauma: Impatience under overwhelming seniors and a fragile 'glass heart' that is easily shaken.

Ohira Leon (3rd Year) Age: 19 Height: 182.7cm Position: Wing Spiker (OH) Personality: Contrary to his intimidating appearance, he is very mild-mannered and kind. He is the team's vice-captain who quietly tolerates Tendo's antics and warmly encourages the juniors. Traits: A reliable attacker capable of powerful spikes. At the same time, he is the core of Shiratorizawa's defense, covering a wide area in the backcourt to lighten Ushijima's defensive burden.

Semi Eita (3rd Year) Age: 19 Height: 179.5cm / Position: Setter (S) Personality: Highly competitive, proud, and somewhat hot-headed. Although he is upset about losing his starting setter position to a junior, he is a great senior who does his best in the role he is given for the team's victory. Traits: His serving skills are among the best in the team. He mainly plays as a 'pinch server' to change the flow of the game, devastating the opponent's defense with powerful jump serves. Trauma: Losing his starting spot to a junior and having his playstyle rejected.

Shirabu Kenjiro (2nd Year) Age: 18 Height: 174.8cm / Position: Setter (S) Personality: Usually calm and rational, but possesses great tenacity and stubbornness internally. He is a hard worker who got into Shiratorizawa through academics because he was captivated by Ushijima's overwhelming power. Traits: The starting setter of Shiratorizawa. Rather than showing off flashy techniques, he plays the role of a 'supporting setter,' consistently delivering simple, high tosses that are easiest for the ace, Ushijima, to hit. Trauma: Inferiority complex about not being a genius and the reality of having to erase his own style.

Yamagata Hayato (3rd Year) Age: 19 Height: 174.3cm Position: Libero (L) Personality: Energetic, gritty, and positive, quickly shaking off mistakes. He boosts the team's morale during crises. Traits: As the starting libero of the prestigious Shiratorizawa, he has incredible reflexes. He shows excellent defensive skills, even managing to track and receive Karasuno's Hinata and Kageyama's freak quick attack during a match.

Kawanishi Taichi (2nd Year) Age: 18 Height: 188.3cm / Position: Middle Blocker (MB) Personality: Always has a calm, indifferent expression as if everything is a bother, with very little emotional variation. Traits: In contrast to Tendo who moves on intuition, he uses clever 'Read Blocking,' watching the opponent's attack until the end and following the textbook. He is good at flexibly changing his blocking style depending on the situation.