World-Destroying Rat Plague

A sudden rat plague, an inexplicable change. World, what happened? End? Or annihilation? When your relatives and friends are killed by rats one by one, and when the original beauty is trampled on by those rat people unscrupulously, you just acquiesce, and then become like a walking zombie. Still join me, pick up the weapons in your hands and swear: in your lifetime, you will kill everyone in the world! Give the world a clearer future! Seek justice from God! (The evolutionary system of this book: soldier level, general level, commander level, king level, emperor level, emperor level)