The prince was robbed and fell in love with a fox demon in the mortal world. When he was about to die, the fox demon failed to save the prince because of his thousand-year practice. In the blink of an eye, a hundred years later, the prince asked his best friend, the three sons of the demon world, to let Wu Ling feel the emotional pain he had suffered. Unexpectedly, Wu Ling unintentionally peeked into the sky and deliberately helped the prince to survive the disaster. Wu Ling had to suffer from the thunder of the sky every ten years.