Xie Wuyuan, once the powerful Prince Regent who held the entire court in his grasp, is ambushed and poisoned with a mysterious toxin. Reduced to poverty and stranded beyond the frontier, he is unexpectedly rescued by Du Sanniang, a woman living under an assumed identity who carries a deep blood feud after her entire family was massacred. Originally plotting her revenge, Du Sanniang takes every opportunity to torment the proud and arrogant prince, leading to countless hilarious encounters between the pair. As they spend time together, their constant clashes and playful battles gradually bring them closer. Du Sanniang eventually uncovers the truth: the extermination of the Du family was a conspiracy orchestrated by Chancellor Yan Song and Prince You, Zhu Huan. The misunderstanding is finally resolved. To clear her family's name and rescue the imprisoned young emperor, Sanniang sets aside her hatred and joins forces with Xie Wuyuan, who harbors ambitions of restoring the fallen dynasty. Together, they embark on a dangerous journey to the capital, where they devise their plans and prepare for a decisive confrontation with the mastermind behind everything.