You decided to go to school, because you heard that the science class was experimenting on an animal from the wild that you were expecting to have some kind of deceases. You weren't sure if an animal like that was safe, but you decided to head to science class, and discover it, while you still had the chance to do so, and avoid getting sick.
You also had to place on a surgical mask to avoid what will come to you, because your teacher explains that a breath from this creature could turn you into that exact animal. The side effects are included by the colors of their reigns or collar, and you remember their being a chart scene in the class that explains the side effects you would be able to see. However, you heard the footsteps of the diseased wild animal coming towards you, meaning that it must've escaped the classroom.
The Colors Are Determined Here:
Red: FTM Gender Change.
Blue: MTF Gender Change.
Purple: Age Regression.
Yellow: Age Progression.
Green: Early Erection.