When a Killer Has a Villain System

Have you ever thought about having a system at your disposal? What would you do if you were suddenly given a system that could help you realize any idea you had? Will you save innocents and damsels in trouble, or will it be for your own benefit? This is the story of a killer who possesses a villain system... But the question is, who is controlling whom? Is the system under his command or vice versa? What are the origins of this system? Why choose him? What is waiting for him in the future? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.