Nozomi Kōmori captains the Momomi Futsal Club as its pivot, projecting cool confidence through his appearance and demeanor. His deliberate attempts at edginess, a remnant of his past as an indie rock band vocalist and bassist in the school's Light Music Club, frequently draw teasing from teammates. Motivated partly by a desire for popularity, he began playing futsal with friends and lives by the motto "Live a happy and joyful life." Despite his leadership, he exhibits frustration toward teammate Yukimaru Kurama's unconventional techniques, often admonishing risky moves. Within the team, he shares close bonds with Natsuki Sogo, Kyosuke Aiba, and Rio Hanamura, who join in lightheartedly mocking his cool posturing.

An only child, he owns a dog named Kelly. His surname "Kōmori" (昂守) combines the kanji for "rise" and "guard/protect," differing from the phonetic association with "bat," while his given name "Nozomi" (希) means "hope." He is a third-year student in Class 2 at Momomi High School, favoring world history. His hobbies center on rock music, supported by guitar proficiency. He prefers black clothing and gyudon but dislikes insects. Lactose intolerant, he avoids milk. Astrologically, he is a Cancer with blood type A. Notably, in-game narratives and anime Episode 8 identify him as the Momomi Futsal Club's least popular member among female admirers.