The Foul King: A timid and extravagant bank clerk, Dae-ho is considered inefficient at his workplace. As he tries to be recognized by his superior, his efforts only cause more bad situations. But he has an explosive energy that nobody knows about. One day, after yet another day of suffering at work, he goes to a wrestling gym to persuade its owner to become his bank’s client. And, by accident, he starts to learn how to wrestle. From then, he starts to live a new life. And his personality starts to change…