Mu Ranyue lives in a complex adult family and plays the role of the eldest daughter. This living environment makes her become a suspicious and independent-minded person. At an underground auction, he was attracted by a blood-red jade pendant and bought it. Unfortunately, he was seriously injured when he was plotted by a rival family. When the blood touched the blood-colored jade pendant, Mu Ranyue's soul actually resided in the body of a princess with a completely different personality from hers. But what greeted her was a living environment that was like walking on thin ice.