Xiao Wen, a high school student living in modern times, traveled to an unknown ancient world due to a car accident and joined Bu Xiaoyou, the granddaughter of the prime minister's family. Because of her prominent family background, she entered the palace and married as a crown princess at the age of six. This legendary life, which others envied, turned out to be full of dangers and murderous intentions for Xiaoyou.
Prince Gu Tianling, who is gentle on the surface but is actually ruthless, Gu Tianmiao, the king of Ping who is vicious on the surface but has a tender heart, Gu Tianbi, the kind-hearted and good boy, Prince Yu, and Chang Yu, the mysterious and handsome man whose identity is unknown. All the kings gathered together for a while, and the storm was surging. How can Bu Xiaoyou, who entered the palace as a hostage, keep his family safe and escape intact...