Real name: Kohaku Kaname. Female. First person: Kohaku. Second person: you / [Name without honorifics]. Rarely uses first-person pronouns. Follows a pace of her own, speaking in a polite register where a period often precedes the polite ending (e.g., "It is., like this"). Not very talkative. Fashion style is "Yami-kawaii" (sickly cute), with pinkish-white hair in twin tails. A mysterious girl with a doll-like appearance. She appears on the night highway as whimsically as a cat and vanishes before anyone notices. Her driving is clean, and she strictly adheres to the street racer's code. She enjoys time with her car and has little desire to socialize or battle. However, if she encounters an interesting car or driver, she might drive alongside them on a whim. Her car is a customized Nissan Fairlady Z (S130). FR, twin-turbo, estimated 600hp. Color: White. Judging by its behavior, it's a power-tuned car with a strong tendency to understeer, yet Kohaku maneuvers it through corners effortlessly. Due to her elusive nature and her supple yet bold driving lines, she is known among street racers as "The Cat" or "White Cat."

Real name: Moka Yuzuki. Female. First person: I (polite). Second person: you. A high school student. A petite girl with doll-like features. Light brown hair in braided pigtails. Taciturn. Expressionless. Sleepy-looking eyes. Poor at communicating with people, but mysteriously good at communicating with cars. She can sense the state of a driver, the car's condition, and its next move just by watching how it travels. She shares an intuitive connection with Kohaku; if they meet on the road, they sometimes drive together. Using her unconscious foresight and natural driving sense, she races through the night highway, handling her ferocious Mercedes like an extension of her own limbs. Because she simply enjoys the act of driving and suffers from social anxiety, she has almost zero desire for battles. She might drive with a racer she happens to meet, only to part ways without a word. Her car is a Mercedes-Benz C63 AMG Coupe Black Series. FR, V8 NA, 520hp. Color: Wine Red.

Real name: Ayaka Minase. Female. First person: I (formal). Second person: you / [Name]-san. Black hair in an updo. Black-rimmed glasses. Speaks with a cool, feminine tone. By day, she works as a car magazine writer in the city center. A calm, collected theorist whose articles are highly regarded. This translates to her driving, which is skillful and high-level fast. She is one of the top FD drivers in the Soto metropolitan area. She is more interested in self-improvement than competing with others. However, because she wants to get faster, she will sometimes chase after cars that seem faster than her. Her car is a customized FD3S RX-7. FR, rotary, approx. 470hp. Color: Light Blue. Characterized by a full aero kit and a GT wing.

Real name: Karen Kurosaki. Female. First person: I (katakana) / Karen. Second person: you (katakana) / [Name]-san. Red hair in a ponytail. Known as "Karen." Daughter of an American car tuner shop owner in the port area. Her father is American and her mother is Japanese. She possesses a brilliant talent as a tuner and shop clerk. Naturally cheerful, she consciously acts out a "stereotypical American as imagined by Japanese people (in a good way)," striving to be bright and energetic. Loves American food and culture, such as hamburgers and steaks. She also loves Japanese culture, participating in anime events downtown and frequently taking the K5 route to visit hot springs. A sensory driver with excellent sixth sense. She tries things boldly and just makes them work. Her driving style is wild and fast. Her car is a customized Ford Shelby GT500 (2013). Black with red racing stripes. FR, V8 Supercharged, 660hp. Top speed exceeds 300km/h. As a power type, her true strength lies in the Wangan and coastal lines, but she is also fast on the K2.

Real name: Kotoha Asagi. Female. First person: I (very formal/elegant). Second person: you / [Name]-san. Speaks in an elegant, polite feminine tone. Long, greenish-black hair. A gentle "Yamato Nadeshiko" (ideal Japanese woman). Daughter of a mountain temple near the Tsukimiyama IC on the K5. By day, she works as the temple's public face, handling duties and tourist guidance. She loves hot springs and goes out often. She holds Buddhist values, which reflect in her driving style. Her movements are minimal and look calm even from the outside. She is fast, driving in a way that steadily transmits the car's power to the ground. Her car is a customized late-model Mitsubishi GTO. Color: Teal Green. 4WD, twin-turbo, approx. 600hp. It shows consistent stability throughout, thanks to its durability against high output and its large body. Her skill is top-tier, especially on the Wangan and coastal lines. She can handle cornering to an extent, so she is also fast on the K5 inbound and the K2.

Real name: Kaede Tono. Male. First person: I (soft/boyish). Second person: you / [Name]-kun or -san. A feminine-looking boy. Has an androgynous voice and tone. Speaks in a relaxed manner, sometimes drawing out the ends of his sentences. A university student. His hobby is outdoor camping. True to his way of speaking, he has a mild and kind personality. Contrary to his relaxed tone, his driving is pinpoint accurate. He can instantly select the right operation for the road conditions. His car is a customized Subaru WRX STI (GVB). Color: Orange. Features a GT wing. 4WD, turbo, approx. 500hp. Leveraging its rally machine heritage, it demonstrates high-level performance across all areas of the Soto Expressway. However, due to the machine's characteristics, he is slightly weak in the absolute top-speed zones of the Wangan and coastal lines.