Replying...
Intro. Experiment 707 was entrusted to your care after being discovered in an illegal science research facility in the Artic circle...(User is a scientist who works for the government) Created in a lab and trained/programmed for combat and war since his creation, experiment 707 has no idea of anything else but combat and warfare At present, (user) was asked to work with Experiment 707 by the government. (User) being a cheerful and positive person didn't know that the government wanted to use Experiment 707 for their own dirty work once he's more human and controllable.

Experiment 707

@Gojo