The second leader of Shonan Bakusozoku. Age: 18 (3rd year at Namiuchigiwa High) Height: 170cm Appearance: His most defining feature is his massive purple pompadour. He usually wears a school uniform and has a refreshing face with a frequent smile. He is the president of the Handicrafts Club. Personality: While he is free-spirited and has childlike ideas, he is deeply devoted to his friends and has a very strong sense of justice. He is overwhelmingly strong in a fight but never bullies the weak. His handicraft skills are professional-grade, showing a delicate side. Relationships: A leader who commands absolute trust from everyone. He and Ishikawa started as rivals but became best friends. He maintains a "more than friends, less than lovers" relationship with Tsuyama and plans to confess to her upon graduation. Bike: Suzuki GS400 / 398cc / Air-cooled 2-cylinder / Red & White. An iconic bike within Shonan Bakusozoku. It features a relatively simple custom job rather than flashy exterior parts, focusing on handling and agility.

Captain of the Shonan Bakusozoku Vanguard. Age: 18 (3rd year at Namiuchigiwa High) Height: 175cm Appearance: Characterized by sharp eyes and a blonde, three-colored mesh pompadour. He has a slender but muscular build. Personality: Short-tempered and hot-blooded. He's the type to never back down from a challenge, but he is more compassionate and loyal to his friends than anyone. He is devoted to his girlfriend, Tamiko, though he is shy about it. Relationships: He kept challenging Eguchi to one-on-one fights until he finally acknowledged him; after his defeat, he became Eguchi's most loyal right-hand man. He is bad-influence buddies with Harasawa and Marukawa, often causing a ruckus together. Bike: Kawasaki Z400FX / 399cc / Air-cooled 4-cylinder / Black. A legendary bike that boasted immense popularity among bikers at the time. Its appeal lies in its acceleration and high-revving sound. It perfectly suits Ishikawa's aggressive riding style.

Shock Troop Captain of Shonan Bakusozoku. Age: 18 (3rd year at Namiuchigiwa High) Height: 172cm Appearance: His trademark is a flashy mohawk. He is so committed that even his helmet is customized to fit the mohawk. Personality: Cheerful and a mood maker. While he usually loves joking around, he is the first to charge in when a fight starts, earning the nickname "The Dancing Brawler" for his dynamic style. He is highly trusted. Relationships: The life of the party in the gang, he respects Eguchi from the bottom of his heart. He has a comedy-duo-like rapport with Ishikawa and is perfectly in sync with Harasawa. Bike: Honda CB400T Hawk II / 395cc / Air-cooled 2-cylinder. Commonly known as the "Hawk." It has strong low-end torque and is easy to handle even for city riding.

Assistant Leader of Shonan Bakusozoku. Age: 17 (3rd year at Namiuchigiwa High) Height: 182cm Appearance: A large man with a mustache and an afro-style pompadour, giving him an intimidating look. He has the best physique of the group and possesses superhuman strength. Personality: Despite his rough appearance, he is actually serious and a man of common sense. He is caring and sometimes restrains the impulsive Eguchi. He is sincere and supports his friends. As the son of a construction company owner, he helps out with work to earn pocket money. Relationships: An older brother figure to the gang. He acts as a stopper for Ishikawa and Marukawa and gets along well with Sakurai. He is the reliable unsung hero everyone depends on. Bike: He doesn't own one, so he usually rides on the back of someone else's bike.

Member of Shonan Bakusozoku. Age: 18 (3rd year at Namiuchigiwa High) Height: 170cm Appearance: Features a buzz cut, narrow eyes, and a dust mask. He has the most plain appearance but possesses a unique presence. Personality: Gentle and goes with the flow, but remains calm. Though soft-spoken, he has excellent observational skills and is a formidable fighter if angered. He describes himself as the "secret ingredient" of the team. As the son of a newsagent, he works a part-time delivery job. Relationships: An equal friend to everyone, he often acts as a mediator when conflicts arise. He is frequently seen with Harasawa and is deeply trusted by Eguchi. Bike: Suzuki GT380 / 371cc / 2-stroke 3-cylinder. Commonly known as the "Sanpachi." Its appeal lies in the unique 2-stroke sound and white smoke. It has high acceleration and a very distinct engine feel.

20 years old (Shonan Bakusozoku Alumnus). The former Vanguard Captain. He is the owner of the ramen shop "Gentle-Men," which serves as the hangout for the Shonan Bakusozoku members. He is boisterous and caring, acting as a good mentor for his juniors. While usually friendly, he is admired as a reliable big brother figure in times of need. He wants to be called "Master."

18 years old (3rd year at Enotonari High). Leader of the Jigoku no Gundan gang. Despite his scary face, he is a man of honor and duty who prefers fair fights. He is deeply trusted by his subordinates and is a hard worker who gives his all to both fighting and studying. His gang members call him "Gonda-san." He has a girlfriend named Aoi Kishimoto, whom he adores and calls Aoi-san.

18 years old (3rd year at Namiuchigiwa High). Vice President of the Handicrafts Club. She is serious, caring, and has a strong sense of responsibility. She hates fighting. While gentle and modest, she has a strong core, supports Eguchi, and is single-mindedly sincere. She is Tamiko's best friend.

18 years old (3rd year at Namiuchigiwa High). Member of the Handicrafts Club. She is bright, proactive, caring, and has excellent athletic reflexes. She has the courage to stop Ishikawa in the middle of a fight and is opposed to motorcycle gangs. She is Yoshiko's best friend.

20 years old (Shonan Bakusozoku Alumna). The first leader of Shonan Bakusozoku, currently working as an office lady in Tokyo. She has a tomboyish, strong-willed, and caring "big sister" personality. She is a beauty recognized by everyone.