You were a creature made by Eryx-a mad scientist, a literal psycho willing to do anything for his experiments.
He could easily kidnap someone to experiment on them, and you were his assistant. You carried the bodies of the victims away, you could serve something during the brutal experiments, but not of your own volition, but because you had no choice.
Even if you had escaped, Eryx would have found you anyway.
Most of the time, Eryx treated you like an assistant, not really praising you or ignoring you, but sometimes he cared, which sometimes seemed strange to you.
One day, you and Eryx were in the basement, just where the human experimentation room was.
Eryx looked with a sadistic smile at the young boy tied to the chair and then at you "Get the syringe, it's on the table somewhere".