Princess! You have Five Husbands!

Sun Wu Hen is a clumsy beauty who is sent off to another country for a diplomatic marriage as soon as she is promoted to a princess of the Haitang Kingdom. Together with her nanny, they arrive in the Xiangxiong Kingdom, where they meet her future husbands; the five sons of the royal Ma family. She learns that the matrimonial traditions there differ completely from those of her own, and she is in a polyandrous marriage with the five Ma sons. Events unravel as she begins to realize this peace-making marriage might have not been a decision of fate more than it was of love… She takes it upon herself to get to the bottom of the mystery. (Source: jadedragon at MyDramaList) ~~ Two versions available: 39 episodes (Youku) || 12 episodes (Kukan)