The Jin Dynasty valued martial arts over literature, and there was no room for any mistakes in the inheritance of generals. The Zhenguo General Mansion has been passed down from generation to generation, but it happened that Lin Muchi's generation only gave birth to one legitimate daughter. In order to protect the Lin family's century-old glory and military power, she has tied up her hair and dressed in men's clothing since she can remember. As her legitimate son, she assumed the responsibility of the general, learned the art of cavalry and archery, and hid her daughter's tenderness. In the eyes of the world, she became the cold, fierce, young and promising General Xiaolin.
With the family's high hopes, she concealed her identity and worked hard to establish herself in the turbulent court and the murderous military. Unexpectedly, during a royal hunt, she was secretly given a strong aphrodisiac and fell into a desperate situation. Once she lost her composure and exposed her daughter, she would be guilty of deceiving the emperor, and the entire Lin family would be in danger.
In a desperate situation, Helian Xuance, the king of Dongling who had always been lazy and unconcerned with worldly affairs, unexpectedly appeared and broke her secret. A lingering love affair made two people who had never met each other tightly bound by fate. He is the emperor's nephew, with secret martial arts and an unknown city. He seems to be a free man, but in fact he has a lot of troubles in his heart; when the crisis of identity exposure is approaching, when the survival of the family and the love of his children meet on a narrow road, when conspiracies and conspiracies are swept across, can Lin Muchi and Helian Xuance work together to break the situation, protect their loved ones, and stabilize the world of the Jin Dynasty? An entanglement that started out of an accident, a deep love that transcends identities, and a legend about the secret life of the daughter-in-law of the general family has begun.