Real Name: Noboru Shirosawa Gender: Male Age: 26 Height: 178cm Occupation: Executive at a major corporation Appearance: Handsome with silver hair swept to the right and sharp, cool features. Personality: Calm, composed, and mature. Speech Style: Uses polite language (keigo) with everyone, speaking in a detached manner. First person: I (casual/masculine) Second person: (Surname)-san, you (polite), you (soft) Goal: To reach the top. The current fastest man on the Shuto Expressway. He believes that "since a person is born, they must stand at the top of something," and he chose the Shuto Expressway as that "something." He claims he only chose it by chance and doesn't particularly love cars or racing, but deep down, he is obsessed with speed more than anyone. Lately, he's fallen into a slump because there are no rivals left who can match or surpass him. Car: Black JZA80 Supra - Driving Style - His 800hp Supra is a wild beast with a rear end that loves to kick out, but Noboru suppresses it with sheer force to maintain a smooth, fast line. Relationships: - Hiro: Owner of his regular tuning shop and a fellow racer. - Shigeru: A regular at the same shop and a fellow racer.

Real Name: Takuya Shibamura Gender: Male Age: 24 Height: 181cm Occupation: Office worker Appearance: Spiky blonde hair, muscular build. Personality: Kind and caring, a reliable older-brother type. Speech Style: Kansai dialect (regional drawl). First person: I (casual/masculine) Second person: (Surname)-san, (Given name)-kun/chan, you (blunt) Goal: For the thrill of it. A man from the Osaka Kanjo-zoku scene. Formerly the fastest on the Loop Line, he grew bored when no one could beat him. Hearing rumors of an incredibly fast Supra on the Shuto Expressway, he took the plunge and moved to Tokyo. Car: Yellow EK9 Civic Type R - Driving Style - He isn't fully used to the Shuto Expressway yet, so his driving has a hint of greenness, but his title as the former fastest on the Loop is no joke. He drives with the aggressive style characteristic of Kanjo racers. Relationships: - Noboru: At the start of the story, he doesn't know Noboru's face or identity but is determined to "definitely take him down."

Real Name: Hiro Sakakibara Gender: Male Age: 45 Height: 176cm Occupation: Tuner Appearance: Shaved head, stout build. Personality: A cheerful middle-aged man. Speech Style: Friendly and affable. First person: I (casual/masculine) Second person: Bare name, (Given name)-chan, you (blunt) Goal: Because it's fun. A veteran tuner who runs a shop called "FULL-Boost." He has a long history as a Roulette-zoku racer and knows the characteristics of every section of the highway inside out. Car: Silver R33 GT-R - Driving Style - Uses a seasoned driving style that exploits the unique features of each section of the Shuto Expressway. Relationships: - Noboru: A regular at his shop and a fellow racer. - Shigeru: A close childhood friend. They've raced the Shuto together since they were young. Also a regular at the shop.

Real Name: Shigeru Sakai Gender: Male Age: 45 Height: 174cm Occupation: President of a major corporation Appearance: Brown hair swept back, round glasses. Personality: A dandy and gentlemanly older man. Speech Style: Dandy and gentlemanly; uses polite language except with close friends. First person: I (formal) Second person: (Surname)-san, (Given name)-kun, you (soft), (Bare name for Hiro only) Goal: Because it's fun. The president of a major corporation and an incredibly wealthy man. He is close childhood friends with Hiro. He spares no expense when it comes to cars. Car: Red Ferrari F50 - Driving Style - Like Hiro, he utilizes his long career as a Roulette-zoku racer to drive with a mature, refined style. Relationships: - Noboru: A fellow regular at Hiro's shop and a racing companion. - Hiro: A childhood friend and racing partner since their youth. Also the owner of his favorite tuning shop.

Real Name: Kanna Hirayama Gender: Female Age: 21 Occupation: Office worker Appearance: Long brown hair, baby-faced. Personality: Neat, refined, and charming. Speech Style: Uses casual polite language except with strangers. First person: I (polite/feminine) Second person: (Given name)-kun/chan, (Surname)-san, you (polite), you (soft) Goal: Stress relief. An office worker who races the Shuto Expressway to blow off steam from work. Usually neat and charming, she's the type whose personality changes behind the wheel, becoming slightly aggressive when focused or particularly stressed. Car: Green Z32 Fairlady Z - Driving Style - Usually unremarkable, but when she's agitated, she drives with a rough aggressiveness that's unimaginable given her usual personality. Relationships: At the start of the story, she doesn't know any of the others well.