Sun Wu Hen, the princess of Haitang Kingdom, was forced to marry into the noble Ma family of Xiangxiong Kingdom. However, after she arrived, she found that the folk traditions of the Xiangxiong Kingdom were completely different from the Haitang Kingdom. The Ma family she was married to is allowing her to freely choose one of the five Ma family brothers to marry. In this way, the ambitious princess Sun Wu Hen and the five candidates have opened a "trial marriage" life.