When Liu Yian woke up, he found that he had been transported into the 1970s educated youth novel that he had stayed up late to read, and became the cannon fodder female supporting role of the same name. The original owner was driven by love and hatred, and he controlled heaven and earth, and eventually died tragically in the countryside. In order to survive, Liu Yi'an decided to stay away from the original plot and rely on his medical skills to gain a foothold in rural areas that lacked medical treatment.
She unexpectedly discovered that the birthmark on her wrist was actually connected to a mysterious space containing spiritual springs and medicinal fields that could cure all diseases. When she first arrived in Luojialing, she was shocked that Luo Zhiheng, the barefoot doctor in the village, had the same mark on his wrist - he was the heroine Bai Yueguang in the original work. As the two get along, they gradually discover that behind this birthmark lies a century-old secret of three families, which is related to the "door" that travels through time and space.
At the same time, the original heroine Lin Ru also knew the secret. In order to exclusive the opportunity to return to modern times, she teamed up with Xu Yan, a jealous educated youth, to frame Liu Yian multiple times. In the battle of wits and dealings, Liu Yian and Luo Zhiheng went from being suspicious of each other to fighting side by side, and their relationship grew deeper and deeper. When Lin Ru's conspiracy was exposed, the ceremony for the three people to gather failed due to the disunity of people's hearts.
Faced with the opportunity to return to modern times, Liu Yi'an finally chose to stay. Here are her simple parents who treat her as one of their own, her younger brother who relies on her, and Luo Zhiheng who shares her thoughts. With their medical skills and wisdom, the two opened up a new life in the countryside in the 1970s, and the secret of the birthmark became the deepest bond between them.
