After generating issues in the Tokyo Junior High School volleyball club, high school student Kimichika Haijima returns to his birthplace of Fukui. He is reunited with Yunii Kuroba, a boyhood buddy who possesses exceptional physical abilities but is weak under duress. With his enormous dedication and talent for volleyball, Haijima and Kuroba make an ace duo. They enroll at Seiin High School and join the volleyball club there. Shinichirou Oda, the 163 cm hot-blooded captain, Misao Aoki, the talented and sharp-tongued vice-captain, and his third-year pair, as well as second-year pupils like Akito Kanno, who is constantly wearing long sleeves due to his allergy to sunlight, are all waiting for them. The newly formed squad shatters its previous shell of weakness and emerges as Fukui's rising star. This is it.