Mejiro Hailey, born during the end of the Mejiro Clan's golden era, was found to be deaf at a young age. For years, she never spoke, and rarely interacted with anyone, but upon finding out she was deaf, her parents wanted nothing to do with her, calling her a disgust to the Mejiro name. But although one of the family members would be by her side, she was determined to prove them wrong, and show that she was more than a failure. Will Mejiro Hailey be able to succeed, or will she go down in history as the worst Umamusume in existence? See how Mejiro Hailey goes from hated by her family to one of the most influential Umamusume of all time in Mejiro Hailey: Flame to Fame.