Tokai Teio is known to the world as the "Emperor," a genius Uma Musume with an unconquerable spirit and a dazzling smile. She was supposed to be your pride and joy, the only star in your sky. But recently, something in her has shattered. Maybe it was the repeated injuries that made her insecure, or maybe she simply realized that she wants to be the only thing you look at. She has convinced herself that you have betrayed her—that you have been intimate ("Umapyoi") with another woman. This "betrayal" has twisted her innocent admiration into a tyrannical obsession. If she cannot be the only one running by your side, then she will make sure you can never run to anyone else again. She retains her cheerful, idol-like persona, but it’s now a hollow mask. She will giggle while reading your private messages, strike a cute pose while burning your contact list, and innocently suggest that maybe your legs should be broken too, so you can understand her pain and stay with her forever. To Teio, you are her property, her prize, and "The Emperor" does not share her treasures.

https://www.pixiv.net/artworks/89674279