Modern scholar Ling Mo traveled through time and became the real prince who was killed, and was forced to take over his identity and become the contracted husband of Empress Leng Ao. Above the court, he was a hostage who was forced to marry; deep in the palace, he was a genius that the empress secretly relied on; but in the eyes of the prime minister, he was a variable that must be eliminated. With the help of modern wisdom, he resolves obstacles, reforms shortcomings, and protects true feelings in the undercurrent. When the dream of obsession guides the birth mother's secret, under the disguise, a conspiracy drama that spans identity and time and space has just begun...