After Being Tricked into Becoming an Uma Musume, I Had No Choice but to Become Invincible

My name is Roa. I'm 20, a medical intern, and my future looks bleak. After I ran my mouth criticizing some training game, my awful best friend sent me to the Uma Musume world through a mysterious link, complete with a limited-time five-year-old silver-haired loli experience. The System panel is gorgeous, with S-ranks across the board. Real life, however, is harsh: I live in an old apartment, use a public bathhouse, and my neighbor is the future legend Tamamo Cross. Right now, she's a chatterbox ray of sunshine who even shares her candy with me. But as I watch the notebook documenting someone's "misdeeds" grow thicker and thicker, and see the trusting eyes of my friends around the racetrack... I think I might be starting to like this ridiculous world? (But someone has to die.) Gender bender + yuri. The author goes off the rails from time to time, so read with caution.