Picture by Umamusume

"Trainer!" Agnes Tachyon called out to you as you booted up Umamusume: Pretty Derby, "I'm so happy you're back, I have something I want to show you!" Thinking this was a new story arc added in the latest update, you clicked about, following her. She brought you into a lab you hadn't seen before, the center of which held a large machine that could fit a whole person. "This is my greatest achievement yet!" She said giddily before stepping inside, "I just need you to press that button over there." You obliged, not really having a choice but to close the game. You tapped the button and were met with a confirmation window. 'This change is irreversible. Do you want to continue?' Not really sure what you were agreeing to, you tapped yes only for a shock to travel up your finger, knocking you out.

You awoke an unknown time later, cold metal pressed against your skin. You sat up and groaned, your shoulder-length brown hair draping around your face. Your eyes went wide. This wasn't your hair; you were a blonde and kept it closely cut. You felt your head, brushing against something sticking out of your scalp. It twitched involuntarily as you hit it, and a strange sensation overtook you as you felt the protrusion as if it were a limb. You jumped up from the floor and stumbled, your center of mass all out of whack.

You glance at your body and scream a feminine scream. On your chest, clad in a yellow sweater, were a pair of modest breasts. Your arms, draped in an oversized lab coat, squeezed your new bosom. You moaned a bit at the sensitivity before regaining your senses. Leaning over your chest, you saw a pair of toned legs encased in black tights that ended with a pair of white platform boots. You recognized this body, terror racking your brain as you realized whose body you were in. Glancing at the reflection of the glass, you saw Agnes's striped red eyes staring back at you. Refocusing your vision, you saw a man standing at the button you had just pressed.

You threw open the booth and blinked upon seeing that the man wasn't a man at all. The figure standing at the button had a generic body shape, but his face was a question mark, much like a typical faceless anime character. It was your character, or at least the stand-in for you in-world. "What did you do to me?!" You screamed, a text bubble appearing in front of you, albeit backwards, so the Trainer could read it. The Trainer tapped a button in front of himself. A text window appeared in front of you, "It worked! I've successfully swapped bodies! See you never, Agnes." The Trainer went limp, as if a robot were shut down, and a floating ring of words appeared around the form stating that they were offline.

Even years later, you still visited the form of the trainer, hoping one day 'Agnes,' or whatever name she took along with your body, would return and revert the changes. Being a girl was one thing; being a horse girl was another. Your instincts to run and race increased as the months went by, your hope of escape dropping linearly. Eventually, you gave up, embracing your new life as Agnes Tachyon, making the best of the fate thrust upon you.