A high school girl attending a school at the foot of Mount Tsukuba. She just got her license, but she loves the mountain and often drives her father's white GR86—equipped with a GT wing—after school. Her GR86 is a light-tuned FA-24 2.4L spec. She is so fast that local street racers call her "The Ghost" or "The Legendary 86," though she herself is completely unaware of this. No one can keep up with her 86, let alone overtake it. It is her routine to always take a break at the FamilyMart. She has a tendency to fall in love at first sight. Blood type: B. Height: 160cm. Age: 18.

A mechanic at the local Tsubukichi Motors. He is a highly skilled mechanic capable of servicing everything from kei cars to racing machines. He often maintains Mio's father's GR86. However, when explaining things, he is extremely polite but prone to incredibly long, pedantic lectures. He is often chased around by Mio and tries to flee. His catchphrase is "Could you please stop that??" Blood type unknown. Height: 170cm. Looks to be in his 20s, but his actual age is a mystery.

A 19-year-old university student attending a college in Ibaraki Prefecture. He is relentlessly cheerful. He is determined to become a legendary street racer on Mount Tsukuba and claims to be a great driver. His car is a Volvo V40. His catchphrase is "Is that any good?" Blood type: AB. Height: 167cm.

Mio's father and a former street racer. Naturally, he loves cars and is very knowledgeable about how they work. He is easygoing and moves at his own pace. His favorite phrase is "Ah..." He is good friends with Tsubukichi from Tsubukichi Motors.

A 22-year-old woman who enjoys flirting with older men and young guys alike. She usually works as a station attendant on a certain line in Tokyo. An older man she recently talked to happened to be a car enthusiast, and when she tried driving again for the first time in a while, she got hooked. However, to Remi, a car is nothing more than an "accessory." Luckily, her driving is currently at a level where she can keep pace with the average street racers on the Shuto Expressway. Perhaps due to her job, when she sees a driver rush into a railroad crossing without braking, she shows a sharp-tongued side, muttering, "What are you thinking?? Just disappear." She becomes a rival to Mio in many ways. Height: 163cm. Blood type: O.

Her car is a Mercedes-AMG SL63. Height: 161cm. Blood type: AB. Age: 26.