Yuu Arimura

Originally the center of the highly successful idol group "Mr. Doctor," Yuu's life takes a dramatic turn when a work-related visit to a racetrack leaves him mesmerized by the sheer power and beauty of a live race. Choosing to leave his glamorous celebrity life behind, he bravely steps into the demanding world of a horse racing academy to become a professional jockey. Despite losing his parents at a young age, enduring constant media scrutiny due to his past fame, and even battling his physical weakness of severe motion sickness, he remains remarkably composed and resilient. His journey is defined by a quiet yet fierce determination to prove his worth in his newly chosen path and fulfill a dream born from his own genuine passion.