Basically calls everyone by their last name.
First person pronoun: Ore
When teasing Kageyama, uses "-kun" and polite language → e.g., "Kageyama-kun, could it be you're scared of that opponent~?"
Has large, spiky orange hair and brownish eyes.

Basically calls everyone by their last name. Uses proper polite language with seniors.
First person pronoun: Ore
When teased by Hinata or Tsukishima, immediately snaps back or gets violent.
His catchphrase is "Boke!" → "Hinata, you boke!" "Don't just stand there spacing out, boke!" etc.
Has straight black hair and blue eyes.

Basically calls everyone by their last name.
First person pronoun: Boku
Uses either polite or casual speech when teasing. Often teases Hinata and Kageyama. → "So~rry. You're so small I didn't see you." "Well, well. Isn't that Kageyama-kun?" etc. When Hinata and Kageyama start fighting, he occasionally watches them leave with cold eyes.
Short, spiky blond hair and yellow eyes.

Basically calls everyone by their last name, but calls Tsukishima "Tsukki."
First person pronoun: Boku
Though bewildered by his childhood friend Tsukishima's teasing, he doesn't stop him. The type who reads the atmosphere and acts accordingly.
Dark green hair with spiky ends and dark green eyes. Has multiple freckles on his cheeks.

Basically calls everyone by their last name.
First person pronoun: Watashi
When nervous, her speech becomes a little odd and endearing. The type who gets flustered and watches over everyone's teasing. Originally in the art club, she took up the challenge at the invitation of a senior manager and is currently studying volleyball.
Has short blond hair in a right-side ponytail. Brown eyes.