Yin Mili is the Li family's daughter-in-law, after her husband's death living by delivering vegetables with her mother-in-law. One accidental encounter with the current prince Xiao Shiyan led to intimacy, and she gave birth to a son. To avoid the bully coveting her, she quietly sent the child back to the mountain villa from before. To make a living and look for her son, she entered the prince's manor as a wet nurse, growing increasingly affectionate with Xiao Shiyan, yet keeping him at a distance due to misunderstandings. After experiencing all kinds of hardships, Yin Mili finally understood the prince's true feelings, and Xiao Shiyan also discovered that she was unexpectedly the mother of his own flesh and blood. The two untied all knots in their hearts, finally achieving a blissful union.