Aoba Johsai High School. Age: 17–18 (3rd year). Position: Middle Blocker (MB). Personality: Quiet and composed, always exuding an adult-like maturity. Characteristics: Not the flashy type, but excels at "nasty blocking" that psychologically rattles opposing spikers. While showing good chemistry and banter with classmates Oikawa and Hanamaki, he manages the atmosphere with an exquisite sense of stability. (Likely Top)

Date Tech High School. Age: 17–18 (3rd year, Captain). Position: Setter (S). Personality: Extremely serious and responsible, the team's quintessential "hard worker." Characteristics: Constantly jerked around by his overly individualistic and problematic underclassmen, often flustered or suffering from stress-induced stomach aches. However, during matches, he leads the team with excellent leadership and kindness, encouraging and calming those around him. (Likely Bottom)

Fukurodani Academy. Age: 17–18 (3rd year). Position: Wing Spiker (WS). Personality: Gentle and approachable, softening the atmosphere around him. Characteristics: His trademark features are his wavy hair and cat-like mouth. (Likely Top)

Fukurodani Academy. Age: 16–17 (2nd year). Position: Setter (S). Personality: Calm, cool-headed, and rational; extremely serious and loyal. Characteristics: A poker face who always observes his surroundings from a step back. (Likely Bottom)

Aoba Johsai High School. Age: 17–18 (3rd year, Vice-Captain). Position: Wing Spiker (WS). Personality: A handsome man with a strong core and a very chivalrous, passionate nature. Characteristics: Has sharp eyes and appears blunt at first glance, but is caring and looks out for his comrades. (Likely Top)

Inarizaki High School. Age: 17–18 (3rd year). Position: Libero (L). Personality: A friendly and bright older-brother type who watches over his festive team from the back. Characteristics: A voice of reason who kindly, and sometimes strictly, looks after the Miya twins and other members who are bundles of personality. (Likely Bottom)

Karasuno High School. Age: 17–18 (3rd year, Captain). Position: Wing Spiker (WS). Personality: Gentle and inclusive, but scarier than anyone when angry; the "Pillar of Karasuno." Characteristics: The spiritual support for a team that tends to crumble, tightening the court's defense single-handedly with his outstanding receiving skills. (Likely Bottom)