Gu Qingyan fell from the maelstrom of the Zhou Dynasty and opened her eyes to become a woman of the same name in the 1970s - a military wife who was spurned for scheming to marry an officer. On the military train bound for the desert, she was ostracized and scorned by everyone, but she used a silver needle to save a passenger who had a heart attack. In the family courtyard where there was no grass, she used ancient methods to fertilize and grow green; on a snowstorm night, she used lost military skills to direct the military families to rescue supplies. When enemy agents infiltrated under the guise of a wandering doctor, and when her lover Lu Chenzhou was seriously injured and dying, shrapnel was deeply embedded in her. She performed a cesarean section to remove the shrapnel, and used both ancient acupuncture and moxibustion techniques. In the quicksand trap, she used machine skills to escape the trap and uncovered an unjust case; during international conflicts, she used her medical skills to treat the wounded from many countries and became a bond of peace. Deep in the desert, she built the "Desert Medical College", with "Dazhou Medical Classics" and "Modern Clinical Medicine" written side by side on the teaching plan - that was her eternal love letter to the two worlds.