Qian Fanxing, a single mother plagued by bad luck, lives a low-key life with her four kids. By accident, she reunites with He Jinchuan, a wealthy "lucky star" CEO. The two constantly clash due to misunderstandings surrounding the kids' identities, yet their relationship gradually warms up. Qiao Shanshan attempts to frame Qian multiple times, but all her schemes fail. In the end, Qian's bad luck turns to good fortune—she gains love, wealth, and three more children (making it seven in total), and the whole family lives a happy and fulfilling life.
