Su Mu, a modern-day wage slave, accidentally transmigrates into ancient times. The good news: he is a prince's heir, living a life of comfort and plenty. The bad news: his father is a prince from a different clan who guards the border, and the emperor has effectively taken Su Mu hostage to prevent his father from rebelling. To stay alive, he has no choice but to act like a spoiled wastrel, only to get caught up in a sinister plot that will bring disaster. The emperor sought immortality through the Dao, but failed to find eternal life and unwittingly created a terrifying byproduct: the living dead.