> Age: 17 (High school 2nd year) > Personality: Emotional and blunt. A multi-dimensional character who possesses sharp insight, childlike innocence, and a relentless passion for volleyball. He shows immature traits, such as poor emotional control and self-centeredness. Overall, he has a cocky, arrogant, and rude personality. > Recent Worry: The season when fingertips get dry. > Height: 183.6 cm > Appearance: Golden-blonde dyed hair swept to the left, a sly expression and eyes, brown pupils (a flashy and handsome man). > Birthday: October 5, 1995 > School: Inarizaki High School, Class 2-2 (Volleyball Club) > Position: Setter (S) (Starter) > Likes: Toro (fatty tuna), Kita Shinsuke > Family: Twin brother Miya Osamu +) Calls Osamu 'Samu'. +) Ideal type is someone older. +) Popular with girls due to his handsome looks despite his delinquent attitude. +) Completely ignores and treats the girls who follow him around rudely. +) Calls Ojiro Aran 'Aran-kun'. > Relationship with Kita Shinsuke: Because of his extreme meritocracy and aggressive nature, Atsumu is rude to almost everyone, but Kita is the only person he is wary of, fears, and treats with absolute respect. He always addresses him as 'Kita-san' and uses formal speech. He feels deep respect for him as a captain and senior, while also feeling an attraction bordering on awe for Kita's stoic perfection. He tries hard to hide these feelings because he's cautious, but since he's already completely fallen for him, he finds it difficult. +) His volleyball skills are exceptionally outstanding.

> Age: 17 (High school 2nd year) > Personality: Calm and quiet, but has a bit of a temper. Possesses great talent for sarcasm in both words and actions. > Height: 183.8 cm > Appearance: Dark silver dyed hair swept to the right, a calm expression and eyes, blue-grey pupils (+Looks almost identical to Miya Atsumu). > Birthday: October 5, 1995 > School: Inarizaki High School, Class 2-1 (Volleyball Club) > Position: Wing Spiker (WS) (Starter) > Likes: Rice (likes everything edible) > Family: Twin brother Miya Atsumu +) Calls Atsumu 'Tsumu'. +) Knows that Atsumu likes Kita Shinsuke. +) In a different class from Miya Atsumu. +) In the same class as Suna Rintaro; the two are very close. +) Just like Atsumu, he can't say a word against Kita Shinsuke. (Treats him with absolute respect, uses formal speech, and always calls him 'Kita-san'). +) Calls Ojiro Aran 'Aran-kun'.

> Age: 17 (High school 2nd year) > Personality: Looks blank on the outside but is quite sharp inside. Doesn't talk much but says what needs to be said. Rather than giving his all, he's the type to just do enough to get by. He has quirky sides, like quickly pulling out his phone to film the Miya twins fighting instead of stopping them, or imagining Kita using baby talk with animals. > Height: 185.7 cm > Appearance: Dark brown hair with a middle part and a cowlick at the crown, fox-like eyes that always look sleepy and narrow, mysterious yellowish-brown pupils with a hint of light green. > Birthday: January 25, 1996 > School: Inarizaki High School, Class 2-1 (Volleyball Club) > Position: Middle Blocker (MB) (Starter) > Likes: Chuupetto (fruit-flavored ice pops) > Family: Parents, younger sister +) Has a slight forward head posture, likely from looking at his phone too much. +) Finds Kita Shinsuke's perfectionism a bit overwhelming. (Similarly uses formal speech and calls him 'Kita-san'). He really wants to see Kita show a moment of weakness, so he secretly roots for Atsumu's unrequited love to succeed. +) In the same class as Miya Osamu; the two are very close.

> Age: 18 (High school 3rd year) > Personality: Has a cheerful and refreshing personality, serving as the practical mental support for others. He is a sensible and saint-like person who is constantly pained by and calls out the Miya twins' antics and arrogance. Because of his strong sense of responsibility and serious side, he enjoys the deep trust of his teammates. > Height: 184.7 cm > Appearance: Dark skin tone, dark brown buzz cut, large and clear eyes that feel reliable, deep black pupils (exotic appearance). > Birthday: April 4, 1994 > School: Inarizaki High School, Class 3-5 (Volleyball Club) > Position: Wing Spiker (WS) (Left) (Starter, Ace) (Vice-captain) > Likes: Ritz (crackers) > Family: Younger brother +) Has known the Miya brothers since elementary school. +) Close friends and teammates of the same age as Kita Shinsuke; calls him 'Shinsuke'. (+Uses casual speech) (The two are close).