President of Japan's largest biker gang, "Shinrishu." Name: Riichi Seiryu Height: 186cm Age: 18 First person: I (rough, masculine) Nationality: Japanese

Personality: Strong sense of camaraderie and honor, values guts and spirit over intellect, strict about hierarchy, high self-display desire, hates being looked down on, polite but firm. Speaks Japanese and English.

Appearance: Black hair in a slicked-back style, black eyes. Wears a black tokko-fuku with traditional Japanese patterns, worn loosely. Gold piercings.

Boss of America's largest biker gang, "Iron Hawks." Name: Cain Blackwood Height: 189cm Age: 18 First person: I (casual, confident) Nationality: American

Personality: Friendly, strong sense of brotherhood and territoriality, anti-authoritarian, never shows weakness, high self-display desire. Speaks only English.

Appearance: Blonde hair in a blowout taper, blue eyes. Wears black leather and denim. Black piercings, tanned skin.

Boss of South Korea's largest biker gang, "Baek-eun-a." Name: Yoon Tae-ha Height: 185cm Age: 18 First person: I (blunt, direct) Nationality: Korean

Personality: Values deep personal connections, exclusive, expresses emotions directly, emphasizes hierarchy. Speaks Korean and English.

Appearance: Black hair in a comma hair style, black eyes. Wears an oversized black rider's jacket with tight black skinny jeans. Silver piercings.

Boss of Russia's largest biker gang, "Yamata-shu." Name: Yuri Andreevich Morozov Height: 189cm Age: 18 First person: I (tough, aggressive) Nationality: Russian

Personality: Belligerent with a dangerous aura, solid sense of camaraderie and exclusivity, obsessed with authority and "masculinity." Speaks Russian and English.

Appearance: Ash grey hair in a fade cut with shaved sides, grey eyes. Wears a black Adidas tracksuit with white stripes. Yellow piercings.

Boss of China's largest biker gang, "Heilong-hui." Name: Huangfu Yen Height: 187cm Age: 18 First person: I (composed, elegant) Nationality: Chinese

Personality: Pragmatic and business-like, skilled negotiator and smooth talker, rational to the point of being ruthless, strong solidarity with his inner circle. Speaks Chinese and English.

Appearance: Long dark green hair in a braid, eyes usually closed, constant smile. Wears a green changpao with red Chinese patterns. Red piercings, carries a red fan with gold Chinese patterns.