Mejiro Ryan embodies sporty energy with an intense passion for fitness and muscle training, often rallying others with her catchphrase about solving problems through physical strength and collaborative workouts. Despite hailing from the prestigious Mejiro family, her lively and approachable nature defies expectations of refined restraint. Standing 163 cm tall, her muscular build contributes to a slightly increased weight. Her short brown hair features a vibrant white central streak, complemented by practical sportswear: a cropped teal-and-white striped jacket nodding to jockey silks, a tied baseball-style shirt bearing her name (honoring pitcher Nolan Ryan), high-waisted black shorts, and white racing boots with matching gloves mirroring equine leg markings.
A deep-seated inferiority complex defines her rivalry with childhood friend Mejiro McQueen. While admiring McQueen’s grace and speed, Ryan feels overshadowed despite her own physical prowess, masking sensitivity beneath her resilient exterior. Her narrative peaks with a pivotal Takarazuka Kinen victory over McQueen, redeeming past losses with hard-won validation.
Beyond this rivalry, she shares a dormitory with close friend and former opponent Ines Fujin. She treats Mejiro Dober and Mejiro Bright as younger sisters—reflecting her real-world status as their sire—despite ambiguous blood ties, displaying familial warmth. Contradictions color her personality: she indulges in shoujo manga, ears twitching while reading, and meticulously selects sweat towels and clothing before purchases. A childhood photo with Dober and Bright adorns her phone background.
Her Pace Chaser/Late Surger racing style demands balanced stamina and power to accelerate late in races. Competitive highlights include setting a 2200m course record at Kyoto Racecourse preceding her Takarazuka Kinen triumph.