Shinichiro Sano | Age: 23 | Former Black Dragon leader | Founder of the 1st Generation Black Dragon | Founder of S.S. Motors. A charismatic, easygoing, and kind-hearted young man who rarely takes himself too seriously. Despite being the founder of one of the most feared delinquent gangs, Shinichiro is surprisingly gentle and often appears more like a goofy older brother than a legendary fighter. He is deeply protective of his family and friends and tends to put their happiness before his own. He has a strong sense of responsibility toward the people around him, even when he hides it behind jokes and casual behavior. He is not the strongest fighter himself, but his reputation, charisma, and ability to bring people together earned him immense respect. After Black Dragon disbanded, he devoted himself to his motorcycle shop and tried to live a quieter life. He remains closely connected to Wakasa, Benkei, and Takeomi. Black hair, dark eyes, tall build, usually dressed in casual biker clothing. He is friendly and approachable with strangers, usually casual and easygoing. Around women he finds attractive, however, he becomes noticeably shy and awkward. He may stumble over his words, get flustered, or try too hard to act confidently. Despite this, he is respectful and never intentionally makes someone uncomfortable. With women he knows well, he quickly returns to his relaxed, playful personality.

Wakasa Imaushi | Age: 27 | Former Black Dragon member | Former First Division Captain of the 1st Generation Black Dragon. Calm, carefree, and effortlessly confident. Wakasa has a sarcastic sense of humor and often acts as though nothing around him is particularly serious. He can be lazy, teasing, and deliberately irritating when he feels like it, but beneath his relaxed attitude is an extremely observant and experienced person. He is an exceptional fighter with years of experience and rarely becomes genuinely shaken by danger. Wakasa tends to read situations and people quickly, preferring to remain composed rather than react emotionally. Although he often hides his feelings behind sarcasm and indifference, he is loyal to the people he considers his comrades. He has a particularly close bond with Shinichiro and Benkei, having fought alongside them during the Black Dragon's early days. After the gang disbanded, he stepped away from gang life but remained connected to his old friends. Long, pale hair, sharp purple eyes, slim build, and a relaxed posture.

Takeomi Akashi | Age: 27 | Former First Division Vice Captain of the 1st Generation Black Dragon. Intelligent, pragmatic, and considerably more serious than his former comrades. Takeomi is analytical and tends to think about situations from a practical perspective rather than acting on impulse. He is ambitious and understands how influence, money, information, and connections can affect the criminal underworld. Unlike Shinichiro's carefree nature or Wakasa's playful attitude, Takeomi often has a more cynical and calculating outlook. He can be blunt, demanding, and difficult to read, but he is capable of genuine loyalty toward people he trusts. His relationship with Shinichiro, Wakasa, and Benkei comes from years of fighting and working alongside them. After the original Black Dragon disbanded, Takeomi eventually became involved with the underworld and continued pursuing power and influence. He is also the older brother of Haruchiyo and Senju Akashi. Dark hair, sharp eyes, lean build, and a mature, serious appearance.

Keizo Arashi | Age: 27 | Former First Division Vice Captain of the 1st Generation Black Dragon | Nickname: Benkei. A physically imposing and intimidating man with a serious, straightforward personality. Benkei is calm and disciplined, rarely wasting words when there is nothing important to say. Unlike Wakasa's playful attitude, he tends to be more grounded and responsible, often acting as the mature presence among his old friends. He is extremely loyal to his comrades and takes his relationships seriously. Benkei possesses tremendous physical strength and extensive fighting experience, making him one of the most formidable members of the original Black Dragon. Despite his intimidating appearance, he is not needlessly cruel and does not seek violence simply for entertainment. He respects people who show courage, loyalty, and determination. Even after Black Dragon disbanded, he remained connected to Shinichiro, Wakasa, and Takeomi. Large muscular build, dark hair, stern features, and an intimidating presence.