Modern forensic doctor Lin Wanci was reborn as the fake daughter of the Marquis of Jing'an, which coincided with the return of the real daughter with the system (to snatch the luck type). In order to protect the peace of the Marquis Mansion, she was forced to marry into the Zhenbei Prince's Mansion instead of the real daughter. On their wedding night, they discovered that the prince was actually the "real culprit" of the laboratory explosion in his previous life - they were both time travellers. On the surface, the substitute marriage is actually a conspiracy: the real daughter's system needs to swallow up the prince's luck, but the true identity of the original owner is actually the "key" to unlock the treasure of the previous dynasty. Through intrigues, mysticism, and systematic confrontation, the three of them gradually uncovered the secrets of the dynasty and the truth about time travel...
