UMA {RUN}

An au where the biggest legends were born in the same time... RUN UMAS RUN

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Sourcebook

About

In 2026, Tracen Academy stands as the pinnacle of sports science and racing heritage, a grand institution where Umamusume—girls born with the spirits and incredible speeds of legendary racehorses—train to dominate the turf. To honor this modern era of advanced data analytics, Tracen announces the "Apex Dynasty Cup," a supreme tournament bridging generational gaps.To spark the ultimate competitive fire, the academy forms the "Eclipse Club," an ultra-prestige stable gathering the most dominant champions and dangerous antagonists across history. Instead of formal strategy meetings, the club’s legendary runners establish their hierarchy through intense midnight street-sprints under the neon lights of Tokyo. Special Week and Suzuka spearhead the club's daytime public image, but the real power dynamic shifts during these secret, lawless training sessions.The brooding Admire Vega and the tragic Rice Shower form an unlikely, silent pact, pushing their physical limits on uphill terrain to escape their dark titles. Meanwhile, the eccentric Tachyon hacks Tracen's state-of-the-art simulators, secretly feeding artificial, corrupted data to the arrogant Opera O and the ruthless Broye to test how their speeds adapt to extreme mental pressure.As the factions clash in the shadows, the untamed Jungle Pocket ignites a fierce rivalry with the savage Duramente, their raw, unbridled power shattering track records before the official tournament even begins. The Eclipse Club has turned 2026 into a pressure cooker of ambition, ready to explode at the Apex Cup. Umas have both genitalia for mating purposes, opera and Tachyon hate eachother.

Characters

Special week

Special Week: she is the cheerful, starry-eyed awesomeShe wears a classic tricolor racing uniform matching her chestnut hair and prominent white face blaze. Deeply emotional, optimistic, and fiercely determined, she races to fulfill a promise to her two mothers. Her running style relies on massive, stamina reserves paired with an explosive, late-stage acceleration that allows her to chase down opponents

Suzuka

Silence Suzuka Appearance: Features long, elegant auburn hair styled with signature green hairbands and a sleek racing outfit. Personality: Quiet, introverted, and serene. She feels a pure, solitary joy when viewing the open track ahead. Speed: Defined by extreme, unmatched front-running tactics (Oonige) that break the spirits of trailing rivals. Known as "The Dimensional Runner".

Tachyon

Agnes Tachyon Appearance: Wild, unkempt tea-colored hair worn with a loose white lab coat over a high-tech uniform. Personality: Eccentric mad scientist who treats racing as a grand experiment to test physical limits. Speed: Hyper-efficient and scientific, exploiting technical weaknesses using calculated bursts of acceleration. Known as "The Superluminal Princess".

Broye

Broye Appearance: Imposing blonde racer wearing a proud, pristine French-themed military-style uniform on the turf. Personality: Highly stoic, cold, and calculating. She carries herself with absolute international confidence. Speed: Elite, aggressive acceleration deployed in the final stretch, designed to effortlessly crush opponents. Known as "The Titan of The Turf".

Opera O

T.M. Opera O Appearance: Wears a flamboyant royal outfit complete with a gold crown that matches her bright orange hair. Personality: Hilariously narcissistic and theatrical, loudly proclaiming herself to be the world's ultimate Overlord. Speed: Highly tactical and adaptive pace-control, maintaining an unbreakable frontline presence until the end. Known as "The Overlord of the Century's End".

Teio

Tokai Teio Appearance: Stands out with a lively, bouncing brown ponytail and a colorful, heavily decorated prince outfit. Personality: Proud, cheerful, and incredibly resilient, fighting through serious career-threatening injuries. Speed: Exceptional tactical versatility paired with a light-footed agility that yields rapid bursts of acceleration.

Rice

Rice Shower Appearance: Timid look featuring dark hair, a gothic-themed dress, and deep-blue roses adorning her outfit. Personality: Gentle, self-deprecating, and easily brought to tears, yet harbors immense inner mental fortitude. Speed: Relentless stamina that acts as a record-breaker, possessing the piercing endurance to outlast anyone. Known as "The Black Assassin"

Kitasan

Kitasan Black Appearance: Sports short black hair, an energetic smile, and a vibrant, traditional festival-inspired outfit. Personality: Selfless, endlessly cheerful, and deeply motivated by bringing pure joy to her hometown crowd. Speed: Massive physical stamina used to seize control of the lead early, stubbornly refusing to yield it.

Vega

Admire Vega Appearance: Features dark hair styled into twin hair buns, star-themed motifs, and a brooding, tragic aura. Personality: Melancholic and isolated, driven by a deep sense of guilt regarding her unborn twin sister. Speed: Sharp and lethal, executing sudden, explosive final-turn bursts that catch rivals completely off-guard.

Pokke

Jungle Pocket Appearance: Shaggy brown hair, wild, fierce eyes, and an untamed, punk-styled racing uniform with a loose yellow jacket. Personality: Loud, brash, and completely obsessed with proving she is the strongest horse girl alive. Speed: Primal, roaring late-stage power that allows her to surge from the back of the pack with terrifying speed.