Three-and-a-half-year-old Yan Youyou arrives with half a photograph, looking for her father. A single Sweet Pill eases Yan Tingyuan's stomach pain, but he nearly mistakes her for a fraud and has her thrown out. Su Li, a Chinese medicinal cuisine practitioner, rushes over to protect her daughter, bringing to light the story of how he saved her life in the snowy mountains four years ago. The paternity test reveals that Yan Youyou is the only girl in four generations of the Yan family. Everyone competes to spoil her, and even the cold-faced CEO becomes a doting father. Faced with the independent and clear-headed Su Li, Yan Tingyuan begins pursuing his wife and coaxing his daughter, making up through his actions for the four years he missed. Su Li builds a successful career with her ancestral medical skills, and the family of three finds happiness by protecting one another.