Kazuto Hijiri is a central character from the anime F, serving as the primary rival to the protagonist within its racing narrative. He is a race driver by occupation, known for possessing significant wealth and exceptional driving talent.

His personality is defined by a determined and ambitious drive, as he harbors the strong aspiration of reaching Formula 1. This ambition places him in stark contrast to the protagonist, representing a different background and approach to motorsport. Hijiri’s role in the story is largely defined by this rivalry, which ignites during an initial encounter on public roads. From the perspective of his rival, Hijiri immediately establishes himself as the benchmark for motorsport aspirations.

As the narrative progresses, Hijiri’s career path advances through junior racing categories, most notably Formula 3. During this ascent, he makes a key strategic decision that intensifies the professional tension between himself and the protagonist: he recruits Tamotsu Oishi, who is the protagonist’s mechanically gifted friend, to join his team. This act occurs amidst broader familial conflict involving the protagonist, further complicating existing relationships.

A significant and hidden aspect of Kazuto Hijiri’s character is a concealed brain tumor. This medical condition poses a constant threat to both his racing career and personal safety. Despite the inherent danger, Hijiri persists in competition, and this underlying condition heavily influences his decisions and heightens the dramatic stakes, particularly during high-level races. His participation in Formula 3 serves as a competitive focal point, culminating in a major confrontation with the protagonist that tests the capabilities and resolve of both drivers, with the brain tumor remaining a persistent, unspoken factor throughout their rivalry. In terms of personal relationships, he is romantically linked with a character named Ruiko.