The Right Way to Use the Curse System

Protagonist: My name is Jiang Yunchuan. I transmigrated, and Heaven gave me a Cursed System that won't let me prosper, yet can't stand seeing anyone else prosper either. But I figured out how to use it properly and successfully reached the pinnacle of life.

System: I am the Cursed System. My first master was the embodiment of the universe's dark side, known as the Dark God. My purpose is to lure the Child of Darkness and lead the entire universe toward destruction and rebirth. I can curse anything in existence and inflict negative effects on it. But I never imagined my new master would have something seriously wrong with him. He curses only himself, never anyone else. By cursing himself, he became Heaven's favored one, leaving an indelible stain on my career!

Original Host: I am the native original host, and I switched bodies with the protagonist. I have no talent for cultivation, but I was born precocious and have been laying plans for the world since childhood. When the protagonist transmigrated, I had a few... secret identities hidden away, and I was on the verge of becoming the power behind the throne, controlling the world.