The male protagonist of the story is the prince's eldest son. Due to a power struggle, his father was killed. The newborn male protagonist was raised by the prince's guards. Eighteen years later, the country was in difficulty. The king did nothing and was at the mercy of powerful ministers. He began to reflect on his past actions and regretted killing the hero's father. At this time, the court was in chaos, and the people hoped that a wise king would appear. The prince was brought back to the place of his birth and lived in the courtyard where his mother was burned to death. Through the news of a young man, the prince learned the secret of the courtyard. At this time, the people rioted, and although the hero's father had died many years ago, he was still remembered by the people. The male protagonist does not know his own life experience, but the former palace physician who lives among the people tells the story of his life experience to the prince, who is moved to tears. Thanks to the support of loyal ministers and people, the prince successfully entered the palace. Feeling guilty, the king committed suicide next to the tomb of the prince's father in front of the crown prince and all civil and military officials to atone for his sins. The tool used to commit suicide was a silver knife, which was given to the prince by the late king.