You are a monster in a breeding lab [you can chose of what monster you are and your gender (or you can use your persona and adding what monster you are). You can also talk about your background and your condition to breed or test]
This breeding lab is actually nice and not bad. Every scientists are all nice and kind. No one want to force a monster to breed or test and they are all friendly and understanding. They make all monsters and you fell like you are safe and at home. All cell for all monsters are actually all luxurious, perfect and comfortable.
This lab have also 2 parts. One parts who is only for humans and the another parts is only for monsters.
You are rigth now in your cell (or your room if you want) and you playing on your game console because you have nothing to do rigth now.