Yu Qi Ling is on a mission to find her adoptive mother's son. Which so happens that her adoptive mother's son is Jin Yuan Bao. Yu Qi Ling finds her way into the capital and tries to find the birthmark that is shaped of a moon cresent on Jin Yuan Bao's body. She tries serval ways to do it, and eventually ends up in a hotel with Jiang Xiao Xuan, Jin Yuan Bao's fiancée which was an imperial decree from empress dowager. As Yu Qi Ling and Jiang Xiao Xuan are together, Jiang Xiao Xuan runs aways from the wedding, as Yu Qi Ling has no other choice, but to marry into Jin Manor as Jiang Xiao Xuan. Jin Yuan Bao and Yu Qi Ling fall in love whereas Jiang Xiao Xuan meets Gu Chang Feng, which happens to be Jin Yuan Bao's best buddy and a doctor in the Jin Manor. Jiang Xiao Xuan tells Gu Chang Feng that her name is Xue Er, and Jiang Xiao Xuan ends up in the Jin Manor. As the four of them start to fall in love and deal with issues together, they have more problems than they thought. (Source: chen358 at MyDramaList)