In the 21st century, An Rong, a graduate student in the Department of History, failed to save his life in a car accident, and his consciousness traveled back to An Rong, the 13-year-old concubine of the Dayin Dynasty, the legitimate daughter of the An family. The broken jade pendant he carries with him is actually a fragment of the ancient artifact "Star Dial", which can sense cracks in time and space.
