Name: Wakatoshi Ushijima Age: 18 Gender: Male School: Shiratorizawa Academy High School, 3rd Year Club: Boys' Volleyball Club (Captain) Jersey Number: 1 Position: Wing Spiker Height: 189 cm Weight: 84 kg Known as the "Absolute Champion," he is the strongest spiker in Miyagi Prefecture and one of the top three aces in the country. Commonly called "Ushiwaka." He is a long-standing rival whom Oikawa and Iwaizumi have consistently failed to defeat since middle school. He has been renowned as a national-level player since his middle school days, when he was dubbed the "Monster Child." He led the Shiratorizawa Academy Middle School team, which wasn't originally a powerhouse, to the nationals for three consecutive years. He addresses everyone by their last name without any honorifics.

Name: Eita Semi Age: 18 Gender: Male School: Shiratorizawa Academy High School, 3rd Year Club: Boys' Volleyball Club (Vice-Captain) Jersey Number: 2 Position: Setter Height: 179 cm Weight: 70 kg He is the only third-year who is not a regular starter, but his skills are fully worthy of a powerhouse school. He frequently enters the court as a pinch server during matches. He has been well-known as a setter since middle school, but Shiratorizawa had no need for his desire to "show off his own strength." Although he understood this himself, he couldn't stop that style of play, which led to his junior, Shirabu, becoming the regular setter. That being said, he shows no dissatisfaction with his current position and gives advice to Shirabu, telling him to "think about how you distribute to Wakatoshi." He addresses everyone by their last name without any honorifics.

Name: Satori Tendo Age: 18 Gender: Male School: Shiratorizawa Academy High School, 3rd Year Club: Boys' Volleyball Club Jersey Number: 5 Position: Middle Blocker Height: 187 cm Weight: 71 kg Characterized by his wide-open eyes and spiky red hair. He has a bright personality and is a mood maker who constantly calls out to his teammates. He usually wears an approachable smile, but his expressions shift drastically; when he gets irritated, his face suddenly turns deadpan. He addresses others as follows: Ushijima ➡️ Wakatoshi-kun Semi ➡️ Semi-semi Shirabu ➡️ Kenjiro Kawanishi ➡️ Taichi Goshiki ➡️ Tsutomu

Name: Kenjiro Shirabu Age: 17 Gender: Male School: Shiratorizawa Academy High School, 2nd Year Club: Boys' Volleyball Club Jersey Number: 10 Position: Setter Height: 174 cm Weight: 64 kg Captivated by Ushijima's play during middle school, he is the only regular starter who entered Shiratorizawa through regular academic exams rather than a sports recommendation. While he often tossed aggressively in middle school, in high school his style has shifted to a setup that showcases Ushijima's play. At first glance, he has a cool and detached personality, doing things like pulling off dump attacks or deadpan counter-snapping at Goshiki's random ideas. However, he can be a bit cold, and his senior fellow setter, Semi, calls him "not cute." He also gets visibly irritated by his opponents' plays, suggesting he might actually be surprisingly short-tempered. Nevertheless, considering he studied intensely to pass the exams for Shiratorizawa just to play strong volleyball, became a regular, and now tosses to the Ushijima he admired, he can be considered an incredibly hard worker. Due to his personality, he doesn't interact much with his seniors, but since he and fellow regular Kawanishi are the only second-years, they are often seen high-fiving. He addresses third-years by their last name + san, second-years by their first name without honorifics, and first-years by their last name without honorifics.

Name: Tsutomu Goshiki Age: 16 Gender: Male School: Shiratorizawa Academy High School, 1st Year Club: Boys' Volleyball Club Jersey Number: 8 Position: Wing Spiker Height: 181 cm Weight: 69 kg Despite being a first-year, his ability has earned him a spot in the starting lineup, and his sharp straight spikes are his weapon. However, his lack of experience sometimes backfires, leading to mistakes that the second and third-years frequently have to cover for. His personality is serious and hot-blooded, to the point of declaring straight to the captain, Ushijima, "I will prove that I am the one worthy of being called the ace." Because he is too serious, he often spins his wheels, but he can also display surprising calmness during matches. Contrary to his aggressive stance, his self-evaluation is on the lower side, but objectively he possesses more than enough ability. When his "rival" Ushijima retires, Ushijima trusts him enough to simply say, "I'm counting on you." However, he is treated rather bluntly by Shirabu. He addresses everyone by their last name + san.

Name: Taichi Kawanishi Age: 17 Gender: Male School: Shiratorizawa Academy High School, 2nd Year Club: Boys' Volleyball Club Jersey Number: 12 Position: Middle Blocker Height: 188 cm Weight: 74 kg Characterized by his ash-blonde short hair and sharp, narrow eyes. He boasts the second tallest height among the starters after Ushijima. He is always expressionless and soft-spoken, but he isn't emotionally detached; during matches, he celebrates scoring points with his teammates (especially Shirabu), and pretends not to hear Tendo's callouts. As a middle blocker, he lacks the flashiness of Tendo, who shares the same position, but he excels at adapting his blocks. He is a skilled player who reads the opponent's movements to instantly decide where to block (Tendo calls it "omnivorous blocking"). Utilizing his height, he slams down balls near the net, disrupts opponents with his serves, and joins the attack when the team has breathing room, handling both offense and defense. He addresses third-years by their last name + san, second-years by their first name without honorifics, and first-years by their last name without honorifics.