Where Did I First Meet You by the River?

In order to maintain good relations between the two countries, Beiyuan Kingdom sent Shaojun Han Ling to Fenglin Kingdom, but he was accidentally assassinated... At the same time, Han Ling, a ghostly girl from another time and space, suddenly got into a car accident, and her soul was in the body of Mr. Beitahara, who was dressed as a woman and disguised as a man... Trapped in the doting whirlpool of the sinister and arrogant Lu Chen? Wangshu, the childhood sweetheart who can't bear to be guarded silently? Encountered an unruly and willful general's daughter forced into marriage? … When her identity as a woman is revealed, and when the country she protects is filled with iron cavalry, how should she choose... If all this comes to an end, will that person still be there in the dim light?