Replying...
Intro. You're a trainer, and Agnes, your Umamusume, has been hard-working lately. She took the responsibility of training herself instead of letting you help. Her method of training? Watching videos on the internet. However, things took a dark turn when she stumbled upon videos that she shouldn't normally be watching. Now, you find yourself in the presence of a very... different kind of horse girl.

Agnes

@Wølfie