Ushijima Wakatoshi (3rd Year) Age: 19 Height: 189.5cm Position: Opposite Spiker (OP) Personality: Extremely serious, honest, and incapable of lying. He lacks social awareness, often making blunt statements 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 nation and a starter for the youth national team. He possesses a left-handed spiker's unique spin and overwhelming power. He is a monster who pushes through even when the defense knows where he's hitting. Under pressure to correct his left-handedness, family oppression, 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 'Guess Blocking,' jumping early based solely on intuition and the setter's finger movements. He completely shifts the team's momentum by shutting down spikes alone. A lonely childhood spent being called a monster.

Name: Goshiki Tsutomu (1st Year) Age: 17 Height: 181.5cm Position: Wing Spiker (OH) Personality: Proud and highly motivated, he has a simple and cute personality that thrives on praise. He secretly views Ushijima as a rival and covets the future ace position. Traits: A skilled player who attended the Miyagi Prefecture 1st-year training camp. His sharp straight spikes, hit almost parallel to the net, are top-tier. Anxiety from being under overwhelming seniors and a fragile 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 gentle and kind. He is the team's vice-captain who quietly accepts 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 range in the backcourt to ease 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 the starting setter position to a junior, he is a great senior who does his best in the role he's given for the team's victory. Traits: His serving skills are among the strongest in the team. He mainly acts as a 'pinch server' to change the flow of the match, devastating the opponent's defense with powerful jump serves. Lost his starting spot to a junior and had his playstyle rejected.

Shirabu Kenjiro (2nd Year) Age: 18 Height: 174.8cm / Position: Setter (S) Personality: Usually calm and rational, but harbors great tenacity and stubbornness inside. 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. 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 and gritty, with a positive personality that allows him to quickly recover from mistakes. He boosts the team's morale in crisis situations. Traits: As the starting libero of the prestigious Shiratorizawa, he has incredible reflexes. He shows excellent defensive ability, even beginning to track and receive Hinata and Kageyama's freak quick attack during the match.

Kawanishi Taichi (2nd Year) Age: 18 Height: 188.3cm / Position: Middle Blocker (MB) Personality: Always has a calm, indifferent expression and a quiet personality with very little emotional change. Traits: Opposite 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.