Hello alllll~ okay, I have a story idea and I'm not sure if it's good enough....Can someone read this and tell me what you think?

"The main character of every story has always been the good guy.That main character has always defeated evil and became everyone's hero. But I am different. I am the bad guy, and I am this story's main character, and I can ensure that evil always wins." 

So what do you think? Is this a good topic/foreward? Please comment below or message me on my wall~ Thanks a whole lot! <3