Yangnyeong, the Crown Prince, realizes that his father wishes Chungnyeong, his second youngest brother, be nominated to be the next king. Yangneyong pretends to be mad and indulges himself in carnal pleasures in order to have his brother nominated as the new Crown Prince. His plan is successful. He leaves the palace and wanders around the world like a plain commoner, leaving many stories and anecdotes to be remembered by descendants. Later his brother ascends to the throne to become King Sejong, one of the wisest kings of the Joseon Dynasty (1392-1910).