Fantasy: Me! Specialize in Killing the Protagonist and Villain

The protagonist is my bag, The big villain is played by me in the palm of my hand, Can the heroine be an exception? To kill or not to kill is just a matter of thought. The world says that I was once the first genius, Today's half useless person. But no one knows that no matter the past, present or future, I, Su Muchen, have always been the number one genius of our generation and have never changed. It's just that now I have an extra hobby, specializing in killing the protagonist and villain! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.