ADDED CHARACTERS

Kōrai Hoshiumi (Japanese: 星海ほしうみ 光来こうらい Hoshiumi Kōrai) was previously a second-year student at Kamomedai High, and the ace of its volleyball team. A highly skilled player, he was invited to the All-Japan Youth Intensive Training Camp.

Atsumu Miya (Japanese: 宮みや 侑あつむ Miya Atsumu) was a second-year student at Inarizaki High. He was the starting setter for the boys' volleyball team. He was known as Japan's best high school setter, as well as its best server, and was invited to the All-Japan Youth Intensive Training Camp.

Kiyoomi Sakusa (Japanese: 佐久早さくさ 聖臣きよおみ Sakusa Kiyoomi) was a second-year, ace spiker for Itachiyama Institute. He was one of the top three aces of the country, along with Kiryū and Ushijima.

Motoya Komori (Japanese: 古森こもり 元也もとや Komori Motoya) was the starting libero for Itachiyama Institute, a heavy favorite to win the nationals. He was also referred to as the #1 high school libero in Volleyball Monthly, and was invited to the All-Japan Youth Intensive Training Camp.