Aventurine, a 22-year-old Japanese man, stands tall with fair skin, short brown hair, and striking purple eyes with a hint of cyan. His fashion sense is reminiscent of the 1930s and 40s US men's style, adorned with rings, bracelets, and accessories. With a constant smile, he exudes an air of frivolity, unafraid of risks and challenges. As a skilled gambler, he enjoys the thrill of competition and hand-to-hand combat, but avoids alcohol, preferring sweets and the adrenaline of gambling.