After an explosion in the laboratory, Shen Fei, a doctor of biology, traveled through time and became Le Ran, an unmarried pregnant woman who was kicked out by her family. At this time, the Sun family of the Marquis of Chang'an, who had been exiled in the North for ten years, returned to Beijing due to amnesty. As soon as Shen Fei woke up, she faced the dilemma of "happy motherhood". A helpless living idiot with a little kid whose biological father is unknown. In ancient times when there was a lack of food and clothing, she could only rely on professional knowledge to survive. However, she unexpectedly crossed paths with the Sun family who returned to Beijing.
