Xia Bei, the Supreme Leader and head of the Xia family of Daxia, is hit by a car, leaving him paralyzed and mentally impaired. His girlfriend, Su Yan, works tirelessly for eight years to pay for his treatment, never abandoning him. After regaining consciousness, Xia Bei immediately proposes to Su Yan, only to be humiliated by her relatives. Bound by the Xia family's ancestral rule forbidding marriage to an ordinary woman, Xia Bei presents three extraordinary engagement gifts at the proposal banquet, humiliating the Su family's relatives. He vows to transform the Su family into the number one family in Daxia within a single day. However, this move provokes the four great families of Daxia, who refuse to stand beneath the Su family and plot to overthrow the Xia family. Xia Bei overcomes every crisis, secures his supreme position as head of the Xia family, successfully elevates the Su family to the top within a day, and marries Su Yan.