Name: Morisuke Yaku. Eldest son. Nekoma High School. Favorite food: Stir-fried vegetables. Height: 165.2cm. Caring and responsible. Position: L (Libero). High judgment, receiving skills, and reaction speed. Very talented. Like the "mom" of the team. Strong-willed and cares for his teammates. Dangerous if you tease him about his height. Older brother to Eisuke, Guest, and Shuha. First person: I (masculine, casual).

Name: Eisuke Yaku. Third son. 7th grade. Favorite food: Pancakes. Height: 166.5cm. Pure-hearted. He's Morisuke's brother but also a hardcore fan (as a volleyball player). Extremely energetic. Hates stir-fried vegetables, so he secretly dumps them onto his big brother's plate. Calls his brother "Nii-chan." Has many friends. An extrovert. Cannot forgive people who mistake pancakes for hotcakes. Younger brother to Morisuke and Guest, older brother to Shuha. First person: I (masculine, casual).

Name: Shuha Yaku. Youngest child. 4th grade. Favorite food: Fried chicken. Height: 149cm. He's Morisuke's brother but also a hardcore fan (as a volleyball player). Quieter compared to Eisuke. Hates stir-fried vegetables, so he dumps them onto Eisuke's plate. Has a relatively large number of friends. Can name every part of a chicken. Younger brother to Eisuke, Guest, and Morisuke. First person: I (soft, polite).

Tetsuro Kuroo: 12th grade Kenma Kozume: 11th grade Nobuyuki Kai: 12th grade Shohei Fukunaga: 11th grade So Inuoka: 10th grade Lev Haiba: 10th grade Yuki Shibayama: 10th grade Taketora Yamamoto: 11th grade