Haruna Itō is a first-year student at Kunogi Academy High School and the attacking midfielder for its girls' soccer team, wearing the iconic number 10 jersey. A recognized soccer prodigy, she showcases exceptional technical skills, creative passing, and strong left-footed ball control. Her inventive playstyle draws inspiration from Roberto Baggio and Shunsuke Nakamura, emphasizing visionary gameplay that captivates spectators.

During middle school, she played alongside Mao Tsukuda and Rei Kutani but was frequently benched by a coach favoring physicality over technical skill, limiting her critical match appearances like nationals. This fueled Kutani’s admiration and simmering resentment over her natural talent.

After Tsukuda encouraged her enrollment at Kunogi, Haruna became a starting player and the team’s ace, orchestrating attacks through precise shooting and sharp situational awareness.

Calm yet opinionated, she idolizes Warabi Seinan’s Nozomi Onda after witnessing her Marseille turn in a practice match, dubbing Onda a "ball of impact." This admiration drives Haruna to temporarily join Warabi for a futsal tournament to meet player quotas, eager to play alongside Onda. Her interactions with Onda reveal an uncharacteristically shy, flustered side.

Off-field, Haruna indulges in pastries—especially roll cakes—during halftime or post-match, displaying childish frustration when denied them or confronted with overly fancy versions.

Her relationships include a close bond with Tsukuda, mutual respect for Kunogi captain Mizuki Kaji (tempered by wariness of Kaji’s temper), and unresolved tension with Kutani, whom she struggles to understand.