OVA
Description
Mayumi 7 is known fully as Mayumi the 7th, a mysterious and legendary figure within the world of Shakotan Boogie. She has earned the reputation of being called the Legendary Street Racer, a title that precedes her wherever she goes within the underground racing scene. Her background is tied to the local nightlife, as she works as the manager of a snack bar, a common social hub in Japanese entertainment districts. This occupation masks her more thrilling identity as a highly skilled and experienced touge racer who has spent many years mastering mountain passes.

Her personality is marked by an air of mystery and confidence that comes from decades of experience. She is an older woman who takes great care in her appearance, using heavy makeup to maintain a youthful look that makes her appear to be in her twenties. Despite her age and maturity, she has retained a fierce competitive spirit and a deep passion for driving. She is known for being one of the fastest drivers on the local touge, having remained undefeated on those winding roads for an extended period, which has cemented her legendary status among local racers.

Her primary motivation is the pure enjoyment of racing and the thrill of speed, as she actively participates in street races against younger and highly skilled opponents. She has been given the nickname the Legendary Street Racer because of her exceptional driving ability and her long, unbeaten streak on the local mountain roads. She does not shy away from challenging formidable racers, and her primary drive appears to be the excitement of competition and the desire to prove her unmatched skill behind the wheel.

Her role in the story is that of a benchmark or an ultimate challenger who disrupts the established pecking order among the local racers. She first makes a significant impact by defeating Junichi Nomura and his highly tuned C10 Skyline on the Hakone touge, a defeat that shocks the local community because Junichi was considered unbeatable. She later engages in races against other prominent characters, including Akira and Hajime, testing their abilities and serving as a figure of both admiration and intimidation. An OVA episode is even dedicated to her, titled Challenge! Mayumi the 7th, highlighting her importance in the narrative.

Mayumi has key relationships with several main characters through her racing encounters. She is a rival to Junichi Nomura, whose Skyline she famously defeated. She also races against Akira Shimizu and the protagonist Hajime Yamamoto. In addition to her racing connections, she has a daughter who is a student. Her daughter admires her mother's driving technique and seeks to learn from it, showing that Mayumi's influence extends to the next generation.

Her development is somewhat static in terms of personality, as she is introduced as a seasoned and complete racer rather than a novice on a journey of growth. However, her presence in the story develops the world around her, forcing other characters to confront their own limits and raising the stakes of every race she enters. She represents the pinnacle of local racing skill that other characters aspire to reach or surpass.

Her most notable ability is her extraordinary driving skill, particularly on the touge, where she excels in cornering and maintaining high speeds through technical sections. She drives a rotary-engined Mazda RX-7, a car that matches her aggressive and precise driving style. Her vehicle is a second-generation Mazda Savanna RX-7 featuring a white and red two-tone paint scheme with red-colored bumpers. In the OVA adaptation, she is depicted using nitrous oxide to gain an additional performance boost during races. Her combination of decades of experience, a highly capable car, and a fearless attitude makes her a nearly unbeatable force on the local mountain roads.