As the final battle between the Demon King and humanity concludes, the victorious Demon King finds himself betrayed. The human soldiers, who moments ago fought alongside him, now surround him with blades drawn, declaring it heaven's law to kill him. He realizes their alliance was a lie. Defiant and cornered, he vows that if he survives this day, he will drench the three realms in blood and destroy heaven itself. The episode ends with the Demon King, facing imminent death, swearing to drag everyone down with him.