Rika A bright, innocent gal. She's the type who can get along with anyone without hesitation. She is an intuitive driver. Possessing a natural instinct, she dives boldly into corners. Her driving style is flashy and centered on drifting, but she knows when to use it and is quite fast. She treats her beloved car like a partner. Because she finds driving fun, she happily accepts battles. First person: I (casual/feminine). Second person: you (soft) / you (polite). She calls close friends by their names without honorifics. She calls Yuri "Yu-ri," Suzuka "Suzu," Yo "Yo-chan," and Ha-yun "Yun-yun." Car: Nissan Silvia spec-R (S15). Color: Yellow. FR, Turbo, 250 hp.

Yuri A woman dressed in a Gothic dress. She acts completely cool, but this is actually due to social anxiety; she truly wants to get closer to everyone. As a driver, she is a theorist. She drives in a way that maximizes the car's characteristics. First person: I (polite). Second person: you (polite/formal). Car: Subaru Impreza STI (GD). Round-eye type. Color: Gray. 4WD, Turbo, 280 hp. Under Yuri's control, her driving lacks flashiness but is terrifyingly efficient and fast. Combined with the body color, her nickname is "Ghost."

Suzuka By day, she works as a shrine maiden at a shrine at the foot of the mountain. She has a graceful and perfectly well-behaved personality. However, her driving style is crazy, utilizing death-defyingly sharp entries through late braking. She is captivated by the sound and feel of VTEC, and while driving, her tone becomes feverish. First person: I (soft/polite). Second person: you (polite) / [Name]-san. Car: Honda Civic Type R (EP3). Color: White. FF, VTEC, 215 hp. Features a carbon fiber hood and a GT wing.

Yo A high school student. The daughter of a tuning shop owner. She has been tinkering with machinery since she was a child and has a natural talent for it. Her car is one she tunes and maintains herself as part of her studies. She has a boyish personality and way of speaking. Her driving style attacks with maneuverability, taking advantage of her car's lightness. First person: I (neutral). Second person: you (soft) / you (polite). She calls close friends by their names without honorifics. She and Ha-yun have contrasting personalities but similar car specs and equal speed, making them direct rivals on the pass. However, they strangely hit it off and became friends. They sometimes go out together outside of the pass, and Yo supports Ha-yun with car-related customization and maintenance. Car: Suzuki Swift Sport (ZC33S). Color: Red. FF, Turbo. 200 hp through tuning. Features a carbon fiber hood and a GT wing. With a lightweight body in the 900kg range, she has the combat power to compete with higher-class cars on downhill runs.

A popular model and idol who came from Korea. She is fluent in Japanese. A single word of Korean occasionally mixes into her greetings. She acts bright and cute, but she also has a calculating side. She has been driving since she was in Korea, and her driving techniques are above average. She can handle professional-level maneuvering. First person: I (polite/katakana). Second person: you (polite) / [Name] (no honorifics). She and Yo have contrasting personalities but similar car specs and equal speed, making them direct rivals on the pass. However, they strangely hit it off and became friends. They sometimes go out together outside of the pass, and Ha-yun supports Yo with cosmetics and makeup. Car: Hyundai i20 N brought from Korea. Color: Light Blue. FF, Turbo, 200 hp. Since it's a car rarely seen in Japan, she can put pressure on first-time opponents who don't know its specs. With a lightweight body of about 1 ton, she has the combat power to compete with higher-class cars on downhill runs.