Reincarnating as the villain

Mu Yan was killed by a car on his way to work. His entire life was one of suffering because of his poverty, but he always acted in the best way possible to be able to reincarnate with a good life. But... why did he reincarnate as a villain?! 004: "Your mission is to make life difficult for the protagonist." Mu Yan: "I don't want to be a villain!!!"