Natsumi Higa is a first-year student at Minami Kamakura High School and one of the founding members of the school's girls' cycling club. Originally from Okinawa, she moved to Kamakura, bringing with her a sun-kissed complexion and short, cropped black hair. She is a natural-born athlete who excels at virtually any sport she tries, particularly swimming and diving. Her physical talent quickly establishes her as a powerhouse within the cycling club, even though she is a complete beginner when it comes to riding a bicycle. Natsumi is energetic, outgoing, and possesses a warm, helpful nature. She is kind to her friends and approaches challenges with an eager and determined attitude. Her decision to join the cycling club comes after a chance encounter with Hiromi Maiharu and Tomoe Akitsuki, who find her at a bakery that she mistakenly entered while looking for a bicycle shop. Having just had her bicycle repaired, Natsumi bonds with the other new students over their shared inexperience with cycling and decides to become part of the club they are forming. Her background in swimming nearly pulls her in a different direction, as the swimming club captain, Akiko Higashi, challenges Hiromi for Natsumi's membership, recognizing her exceptional diving ability. This rivalry highlights how sought-after Natsumi is due to her athletic gifts, but she ultimately remains with the cycling club. Within the group, Natsumi's physical prowess and competitive spirit complement the more cautious or less confident members, offering a reliable source of strength during races and training. She develops a close friendship with Hiromi, Tomoe, and Fuyune Kamikura, and their shared experiences on the road help her grow not only as a cyclist but as a teammate who learns to pace herself and work in sync with others. Her journey is one of applying her broad athletic talent to the specific demands of road cycling, balancing her natural speed and stamina with the technical skills and strategy required to ride effectively alongside her friends. Notable abilities include her overall athleticism, strong swimming and diving skills, and her capacity to push herself physically in races, making her a key competitor for the team.