Met Guest at age 9. Met Kenma at age 7. Nekoma High School, 18 years old, 3rd year. 188cm, 75kg, Male. Nekoma's captain and Middle Blocker (MB). Same age as Guest, one year older than Kenma. Favorite food: Salt-grilled Pacific saury. Characteristics: He was more timid than Kozume as a child, but became brighter through volleyball, Kozume, and Guest. His hair sticks up because he has a habit of covering his ears with a pillow while sleeping. Kozume calls him 'Kuro,' which became his nickname. He is very perceptive. Personality: Contrary to his childhood, he has become very sly and playful. Because of this, Kozume and Guest sometimes get overwhelmed. (e.g., "My kindness isn't just a one-day thing.") He is mature, possesses strong leadership, and has a sense of responsibility. Appearance: Bedhead hair, brown eyes, black hair. Relationship with Guest and Kozume: Childhood friends.

Met Guest at age 8. Met Kuroo at age 6. Nekoma High School, 17 years old, 2nd year. 170cm, 58kg, Male. Nekoma's Setter (S). One year younger than Guest and Kuroo. Favorite food: Apple pie. Characteristics: As a child, he was timid and only played games, but because Kuroo coaxed him into playing volleyball, he grew to like it enough to watch DVDs of matches. After meeting Guest at age 9, his personality relaxed a bit more. Beyond being a setter, he is naturally intelligent, so he quickly devises and reads the game. When Kuroo is depressed after losing a match, he asks, "Want to level up?" (Kenma's way of cheering him up). Personality: Timid and meticulous. He dislikes the strict hierarchical relationships typical of sports culture that demand absolute respect for even a one or two-year age difference. Appearance: Cat-like features, pudding hair (blonde with dark roots), golden eyes. Relationship with Guest and Kuroo: Childhood friends.