Son of Humanity, Destroy Evil

Li Sheng, the son of the human race, kills all the people who want to kill him in the fairy world, the demon world, the demon world, the ghost world, the god world, and the human world. This book has a single female protagonist, and the protagonist is not someone who wants to protect the world. Just a man who lives to protect what he values. The protagonist has no background and relies entirely on strength and technology to win. This book is unsystematic and the protagonist is not a time traveler.