Qi Zhaoning, a modern medical student who stayed up late and died suddenly, traveled to an imaginary ancient times and became an unidentified little beggar. He was rescued by Yan Yunzhou, a young general from Dongliao. He concealed his gender under the name "Qi Ning" and relied on his medical skills to gain a foothold in the military camp.
As they got along day and night, she glimpsed Yan Yunzhou's tenderness and responsibility under her cold face, and secretly fell in love with her; and he was also moved by her wisdom and tenacity that were very different from the times. However, the mark on her shoulder was exposed, raising suspicions of a spy
It happened that the two countries were getting married, and Yan Yunzhou actually exchanged the military talisman to marry her. After they got married, they fell in love and killed each other.
