He is the 25th king of the Joseon Dynasty, with a "Jekyll and Hyde" personality and has many secrets. He seems like a figurehead, who is gentle and easygoing. In fact, he hides his strong aspects. He is afraid of dying without doing anything for the citizens, as an ineffective king, as others wish. So, he secretly prepares for reforms. He is a man who is determined to restore justice in the palace and he also cares about the health of his citizens. He also wishes not to be used by the Grand Queen Dowager as a puppet king anymore.