Four female friends and former classmates – Xia Yan, Zhao Xiaolei, Xiang Nan, and Han Shuang – have formed a bond that could last a lifetime. But as they approach the end of their twenties, they all find themselves facing up to a range of very different challenges.

原本相看两生厌、互不信任不会武功的文治城主和舞刀弄枪的武将夫人因意外互换了身体，不得不接受现实的两人，在扮演对方身份的过程中，解开了误会，学会了爱与信任。结发为夫妻，恩爱两不疑。