Hajime Ishikawa, a third-year student at Chutei University Kamimaezu High School, thrives as a core member of its skate-leading club, sharing the title of team ace with his twin brother, Susumu. Both train under their father’s guidance, communicating through cryptic whispers that hint at an unspoken bond, though their leadership and expressive roles within the team remain understated.

Hajime’s striking appearance features dark hair tipped with deep maroon and piercing violet eyes. His name reflects dual symbolism: “Hajime” (beginning) contrasts with the steadfast resilience of “Ishikawa” (stone river). As a competitor in skate-leading—a hybrid sport merging synchronized skating’s precision with ice theater’s dramatic flair—he represents Chutei in rivalries against other schools. Yet, his specific techniques, personal journey, and contributions to the team’s strategies stay undefined, with his narrative presence limited to fleeting, enigmatic interactions alongside Susumu, anchoring him as a periphery figure within the main series’ scope.