The Death Knell

Through United States, he was originally just an ordinary person and became a world-famous mercenary and killer. Things are wrong, should he become a hero of justice? Or continue his dark career? "Don't judge me by the superficial concept of good and evil, I only do what I want to do." The protagonist suddenly appeared behind the author of the book about Hu Bian's work and exploded his dog's head with a shot: "It's that simple, I'm the Death Knell