When the Su family of Lin City was at its peak, the young heir, Su Gaohan, was saved by Ye Qingxue, the adopted daughter of the Ye family. However, everyone mistakenly believed that it was Ye Huan, the legitimate daughter of the Ye family, who had saved him. As a result, under the arrangement of the elders of both the Su and Ye families, Su Gaohan and Ye Huan were betrothed to each other in their childhood. Later, it is revealed that the Su family of Lin City had split off from the Imperial Capital's Su family long ago. The Imperial Capital's Su family coveted a mysterious map held by the Lin City Su family, and secretly aided the Zhu family of Lin City in annihilating the Su family.