I Brought the Upgrade System

I have a system. Who am I afraid of? A young man who brought his system to conquer the world is an invincible legend. Because his girlfriend cheated on him, he was retaliated by the rich second generation. Unfortunately, he fell off a cliff. When he was about to die, he was bound to the invincible upgrade system. Then, with the help of the system, he killed his enemies step by step, broke out of the earth, went to the fairy world, the god world, the holy world, and finally became the controller. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.