Witch Yun Qingqing is driven to frustration and humiliation when her mother constantly pressures her to get married and have children. That very night, Jiang Yunjing, who is being hunted down, encounters Yun Qingqing. The two make a pact: she will save Jiang Yunjing's life in exchange for having a child. Seven years later, Yun Qingqing has become an overworked office worker. By chance, she runs into Jiang Yunjing, who has returned to the country. During those seven years, Yun Qingqing has raised their child and supported the family on her own. Meanwhile, their six-year-old daughter, Yun Duo, awakens her magical powers ahead of schedule and grows into an exceptionally gifted little witch who can do just about anything. After Jiang Yunjing returns, he, Yun Qingqing, and Yun Duo unexpectedly meet at a restaurant. Knowing that her mother needs to have a second child to restore her magical powers, Yun Duo secretly uses magic to create an opportunity for her parents to get closer.