Hitomi Hokuto is a former A-Rank Keijo player who now works as an instructor at the Setouchi Keijo Training School, where she is responsible for physical training and practical instruction. At thirty-four years old, she has long blue hair and dark blue eyes and typically wears a simple white shirt. Her background as a high-level competitor gives her considerable authority and expertise, allowing her to easily outmatch student-level fighters despite being retired.

In terms of personality, Hokuto is normally calm and kind, displaying a genuine attentiveness to her students and a clear love for teaching. She is dedicated to helping young athletes develop their skills and often finds ways to motivate them, such as promising to treat the dorm room with the highest training scores to the best gelato shop in Awaji. However, she is also capable of being firm when necessary, as seen when she punishes students for obtaining low scores or forces them to bow down as a form of disciplinary action. Her approach balances encouragement with accountability, reflecting her commitment to student development.

Within the story, Hokuto serves as an authority figure and mentor, supervising entrance exams and managing student affairs from the first day of school. She specializes in giving physical training, complementing the classroom lessons provided by her colleague Miku Kobayakawa. During a simulated race, she openly demonstrated her full abilities without holding back, showcasing the gap between her experience and the students' current levels. Despite her competence, she was once belittled by Ayako Sakashiro from the Suruga Keijo Training School, an experience that left her and Kobayakawa feeling deep frustration and humiliation. In response, she expressed gratitude toward students who voiced anger on her behalf, highlighting her appreciation for their support.

Key relationships include her connection to Suzuho Kato, whom she mentored and with whom she formed a soeur partnership during her active career. She also works alongside Miku Kobayakawa as a fellow instructor, and the two have shared difficult moments, such as the humiliation inflicted by Sakashiro. Her interactions with students like Nozomi Kaminashi reveal subtle layers to her character; when she forces Nozomi to bow down, Nozomi notices that Hokuto's hands are trembling, suggesting that Hokuto may not be as stern or unfeeling as she appears in such moments.

Hokuto shows some development through her transition from active competitor to educator, with her teaching methods occasionally differing between the anime and manga adaptations. In the anime, she states that each year five students will be dropped out from the school before graduation and imposes punishments for poor performance, whereas the manga does not include these elements. These differences indicate that her role as an instructor is portrayed with varying degrees of strictness across versions. As a former A-Rank player, her notable abilities include a level of skill that still surpasses student-level fighters, and she does not hesitate to display her true capabilities when demonstrating techniques or evaluating students.