Jiang Youxi of the Medical Department of Bojiang University is approached by Jiang Xu, a teenage boy from the future who insists that he is the son of her and He Zhuo, the second young master of the He family. At night, Jiang Youxi accidentally catches He Zhuo ruthlessly disposing of an enemy, and is caught by He Zhuo sniffing the unique sweet peach scent on her body. Jiang Xu scales a wall and breaks into the He family home, destroying antiques and incurring a massive debt. He Zhuo suffers from severe insomnia year-round, and only Jiang Youxi's peach scent can soothe him. The two gradually develop romantic feelings through their daily bickering and pulling while working to pay off the debt. Jiang Xu acts as a divine assist in the middle, slowly uncovering the psychological trauma left behind by He Zhuo's childhood wandering outside, facing the He family's domestic conflicts together, and achieving mutual redemption.