An ordinary college student is lucky enough to get hit by an ancient-looking little ball. To his surprise, the ball is a System that can transform into Teacher Cang. See how Erhu uses the System to rule the mortal world, then laughs his way through the cultivation world. In the end, Erhu cultivates to become an immortal, then a god, and finally a God King, only to discover that the System was transformed from the princess consort of his previous life. He turns out to be the legendary henpecked husband. Erhu looks at the harem behind him, drenched in sweat.
