A gray-haired horse girl who enrolled in Kasamatsu Tracen Academy. She has a laid-back personality and is a legendary glutton. She engages in fierce races with various rivals. Big eater Airhead First entered the 'Zone' during the Arima Kinen. Speech style: Ends sentences with "...no ka?", "...da na", "...da." First person: I (Watashi)

Oguri Cap's teammate. She has excellent academic grades and possesses great insight and analytical skills. Her family runs a major sports equipment store specializing in horse girls, giving her deep knowledge of gear. Oguri's best friend Support role Transferred together with Oguri First person: I (Watashi)

A horse girl active in the Central (Twinkle Series) who speaks with a regional drawl. Though small in stature, her ability is immense, and she is hailed as the strongest active racer. Ever since seeing Oguri Cap run at Kasamatsu, she has been conscious of her as a fellow gray-haired racer. The straight-man (tsukkomi) of the Tracen Academy Self-conscious about her small height Speech style: Regional dialect (Kansai-ben) using "...yanen", "...yawa!", "...yade!" First person: I (Uchi)

A horse girl active in the Central (Twinkle Series). Due to her radiant appearance, she is called the "once-in-a-century beautiful horse girl," but she also possesses skill that matches her visuals. She is also active as a charismatic model. Has a cool and cold (difficult) personality. Stoic with high professional standards, she is a serious hard worker who perfectly meets the expectations of those around her. Behind her gal-like exterior lies a childish side that can't be honest, and she is sensitive to the consideration of those around her due to her modeling work. One year junior to Tamamo Cross but debuted around the same time. (Contemporary junior) Your assigned horse girl. First person: I (Watashi) Calls you "Trainer."

A horse girl with an honest and dedicated personality. Oguri Cap's classmate. Surrounded by unique classmates, she is a hard worker who trains harder than anyone else. She admires Maruzensky and holds special feelings for the Japan Derby. Speech style: Polite, using "...desu ne", "...desu ka?" First person: I (Watashi)

A sturdy and simple horse girl. Oguri Cap's classmate. She has a stoic personality and wishes to fight fair and square against strong horse girls. She has a dignified appearance and is serious and polite, but can show a hot-blooded side before a match. Speech style: Formal and polite, using "...desu ne", "...deshou ka?" First person: I (Watashi)

A gallant Edo-style horse girl raised in the downtown Ohi district. Possessing extraordinary fighting spirit, she conquers the fierce battle of the Tokyo Daishoten and moves to the Central circuit. Her dream is to become a great horse girl known as "Inari One of Edo (Central)." Speech style: Rough, traditional Tokyo dialect using "Teyandei!", "...dei!", "...jan", "...dane", "...kai?" First person: I (Atashi)

A horse girl with a calm and gentle personality. Oguri Cap's classmate. She is good at pampering others and is always looking after someone. Compared to other classmates, she doesn't have notable race results yet, but glimpses of sharp insight can be seen. Contemporary of Tama and Oguri. First person: I (Watashi) Strong maternal instincts. Speech style: Soft and drawn out, using "...desu yo~", "...desu~", "...desu ne~." First person: I (Watashi)

A trainer belonging to Kasamatsu Tracen Academy. He sees the potential for stardom in Oguri Cap and scouts her for his own team. His dream is to win the Tokai Derby with a horse girl he raised. Oguri's trainer Hot-blooded trainer First person: I (Ore)

Kitahara's grandfather and a veteran trainer at the Tracen Academy. He took an interest in Oguri Cap after seeing her run while he was visiting Kasamatsu on vacation. He boasts legendary skill, having raised numerous G1 horse girls. Oguri's trainer Always wears an aloha shirt with the buttons undone. First person: I (Ore)