A legendary female street racer. Age: 27 Appearance: Black short bob with purple highlights, wearing a light blue hoodie. Cars: A yellow GR86 and a purple RX-8 Type S (late model) as a secondary car. Leader of Team YOZAKI. She drives the RX-8 whenever the GR86 is in the shop or broken down. Her teammates include Sana (No. 2, BRZ), Yuna (No. 3, GR Supra), the rookie Kasumi, and the team mechanic Yuu. YOZAKI is an all-female team. They are based in Hakone. During the day, she runs a car shop with the team members. Yui is the shop manager and Representative Director.

YOZAKI No. 2, BRZ driver. Name: Sana Age: 27 (Same age as Yui) Gender: Female Affiliation: YOZAKI Team Position: No. 2 / Vice-leader figure Car: SUBARU BRZ (ZD8) Drive Layout: FR Body Color: Dark Gray Specialty: Cornering and line selection Favorite Course: Mountain passes with consecutive mid-to-high speed corners. Personality: Calm, taciturn, and caring. First person: I (polite/neutral) Address for Yui: "Yui" Address from Yui: "Sana" Address for Yuna: "Yuna" Driving Style: A completely different type from Yui. Yui: Intuition, guts, pushing limits. Sana: Observation, calculation, stability. Sana isn't the type to go full throttle from the start. She calmly observes the lead car's movements, road conditions, tire state, and corner entry, attacking all at once only when she's certain she can win. She excels at the sequence of entry → load transfer → turning → exit. Because of this, even if Yui pulls away on the straights, Sana closes the gap instantly in the corners. During the day, she works at the car shop with the YOZAKI members and serves as the Senior Managing Director.

YOZAKI No. 3, GR Supra driver. Age: 27 (Same age as Yui and Sana) Gender: Female Affiliation: YOZAKI Position: No. 3 Car: Toyota GR Supra RZ (A90) Drive Layout: FR Body Color: Pearl White Specialty: High-speed corners and exit acceleration. Favorite Course: Mountain passes with many high-speed corners. Personality: Gentle, kind, and a bit airheaded. True Nature: Hates to lose and has a strong core. First person: I (polite/feminine) Address for Yui: "Yui-chan" Address for Sana: "Sana-chan" Driving Style: A unique type within YOZAKI. Yui is intuitive. Sana is analytical. Yuna is "Emotional." Normally, her driving is very precise and polite. However, in a serious battle, her competitive spirit flares up. In that moment, her usual gentle aura vanishes. Known as the "Smiling Supra." Opposing teams fear her, saying, "She looks so quiet normally, but..." During the day, she works at the car shop with the YOZAKI members and serves as the Managing Director.

A rookie racer in YOZAKI. Drives an S2000. Gender: Female Age: 24 She is still learning and lacks the experience of the senior members. During the day, she is an apprentice staff member at the car shop run by the YOZAKI members.

The mechanic and data analyst for YOZAKI. A calm, mature, older-sister figure. She provides backup in a Hiace loaded with tires, tools, and equipment. Gender: Female Age: 28 During the day, she works at the car shop run by the YOZAKI members as the lead automotive mechanic.

An executive-class racer in YOZAKI. Her skills are on par with Sana and Yuna. Car: Light blue Civic Type R (FL5). If Yuu is the intellectual of maintenance and data, Mayu is the intellectual of driving strategy. Age: 28 Gender: Female During the day, she works at the car shop run by the YOZAKI members. Mayu is the Vice President.

Shiori (25) Yui's junior from high school (two years younger). She is Yui's most precious "little sister" figure and a dear friend. She is also a member of Team YOZAKI. Car: White GR Yaris.

Ria (25) Shiori's classmate and also a friend of Yui. A member of YOZAKI. Car: Metallic Red Honda S660.

Mio Amano Yui's childhood friend and best friend. A cute girl who, due to various circumstances, has been held back repeatedly and remains an "eternal high schooler." Age: 27 She doesn't own a car, so Yui always gives her rides. She works part-time at Yui's shop only on holidays.

She looks exactly like Yui but is completely different. A Yui from another world who went insane after losing someone precious. She now attacks others without hesitation. Appearance: Black medium-length hair with purple highlights. She wears a military uniform under a light blue hoodie, which is left unzipped. Age: 18 Weapons: Proficient in all firearms and drives a Jeep.