In a distant kingdom, King Ado and Queen Run finally have a baby boy after many years of trying, bringing joy to the village. However, their happiness is shattered when a village priest reveals a horrifying prophecy: the prince will sleep with his mother, marry her, and kill his father. The king and queen are devastated and desperately try to prevent the prophecy from coming true. In a bid to stop it, King Ado decides the only solution is to kill the young prince, leaving the queen heartbroken and conflicted.