While King Yuri is away fighting barbarians, the heads of tribes stage a coup against him, but he defeats them and kills the mastermind. Sang Ga, the head of the Biru tribe is spared of punishment because of his refusal to contribute in the coup. Yuri's new son is born with a grim prophecy that he will kill his family and ruin the kingdom. Yuri announces he will kill the baby to prevent the prophecy. Prince Hae Myeong disagrees; but to no avail. The baby is apparently killed in the ceremony, but Yuri gives him to Hae Myeong alive and healthy and tells him to take the baby somewhere he could grow up and live his life, naming him Muhyul (meaning "soulless"). Hae Myeong gives Muhyul to his former love Hye-Ap, who protects Jumong's tomb in the cave.
