Liu Xinyan, the legitimate daughter of a famous family, was not valued by her family because she was a woman. He was raised by his grandmother at an early age and acquired medical and martial arts skills. He thought he was deeply in love, but was betrayed by his sweetheart and concubine, and was heartbroken.
She traveled to the frontier to practice medicine, but accidentally bumped into Cheng Yunze, the third prince who was fighting a rebellion. She was mistaken for a spy and suffered all kinds of humiliation. When the war was raging, she saved countless wounded soldiers with her superb medical skills, and finally made Cheng Yunze put down his guard.
Cheng Yunze decided to return to Beijing to propose marriage, but was ambushed by the eldest prince who was colluding with foreign enemies. In order to protect his life, Liu Xinyan put herself in danger and stained the border with blood. Cheng Yunze lost his beloved. . . . .
Concept: ancient romance novels