In the fourteenth year of Tianbao, outside Xinghua Village on the outskirts of Luoyang, modern medical student Lin Wei woke up from the white light of a truck. The bronze medical needle passed down by her grandmother was burning like a flame in the palm of her hand. The white coats in the emergency room were replaced by burlap skirts, and the smell of iodophor was replaced by gunpowder smoke and the incense of herbs - she fell into the bloody dusk on the eve of the Anshi Rebellion.
In the ruined temple, the groans of the wounded soldiers pierced the dead silence. When the doctor accompanying the army announced that the soldier who had been poisoned by the arrow could not be saved, Lin Wei's hand holding the "Lingshu Needle" suddenly became hot. The astonishing debridement with alcohol, the precise operation of the herbal application, and the faint green light bursting out when the green needle was inserted into the acupuncture point, caused the dying soldier's fever to slowly subside. This scene happened to fall into the eyes of Xiao Che, the general guarding Mang Mountain - his armor was stained with blood and his eyes were like an eagle, but he saw the hope of life in this desperate situation in the fingertips of this foreign woman.
The bronze medical needle hides the key to time travel, as well as the mystery of ancient medicine: it can warn of rebels, draw vitality to heal serious injuries, and prop up a shimmering barrier in the desperate situation of the fire attack station. Lin Wei, armed with modern medical knowledge and the magical power of medical needles, followed Xiao Che's remnants on the dangerous journey to Chang'an. The body temperature of each other when riding a horse together in the mud, the slight trembling of fingertips when changing dressings on a rainy night, and the solemn promise of "Wait for me in Chang'an" in the flames of war made the two hearts tightly connected in troubled times.
