"History of Gucang·Xueyan" contains: The person who sacrificed his life to Xuepo was Xueyan, the tenth emperor. He had a handsome appearance, not a female appearance, a natural temperament, and unparalleled elegance. He likes to wear white clothes and is good at playing the musical instrument. His "random dance of mandarin and phoenix" is unique among the six realms. After 500 years of snow, the king fell in the world of mortals and met the devil. They fell in love with each other and got married. However, the demon king fell in love with your younger brother, so you performed a dance on your wedding day and left, hiding in the holy mountain, never to return to the world of mortals. Thousands of years later, a vision of thousands of phoenixes singing together appeared in the holy mountain. On that day, the demon king shed tears, and the beads in his hand fell to the ground and turned into ghosts.