Norimune Kurosu is the head coach of Inarizaki High School's boys' volleyball team. This middle-aged man sports short, light-colored hair, noticeably darker eyebrows, and black-rimmed glasses. Kurosu embodies Inarizaki's "We don't need memories" motto, prioritizing forward-focused growth over past achievements. He encourages players to continuously challenge themselves, exemplified when he motivated first-year pinch server Heisuke Riseki after a failed serve, urging him to focus on the present and find new challenges instead of dwelling on the mistake. His coaching style is fair and open-minded; he avoids reprimanding players for errors and readily offers second chances. He often incorporates dog-related analogies into his guidance, reflecting a personal affinity for dogs. Having coached Inarizaki for several years, Kurosu scouted talents like the Miya twins and Shinsuke Kita during their junior high careers. His long tenure grants deep familiarity with players' personalities and tendencies, such as recognizing when the Miya twins become overly excitable and making strategic substitutions accordingly. He guided Inarizaki as the second seed to a closely contested Spring High National Tournament match against Karasuno, which ended in a loss. Post-match, he took responsibility for not employing more offensive strategies but acknowledged the loss as a catalyst for significant player development. Kurosu holds particular respect for team captain Shinsuke Kita, noting his diligence and minimalistic efficiency since middle school, describing Kita's confidence as rooted in reliability rather than arrogance. His surname, "Kurosu" (黒須), derives from "kurosu kitsune" (cross fox), aligning with Inarizaki's fox-themed nomenclature.