Bai Zhou Yue / Princess Xiao Zhou
Fictional Character
Gentle but resolute, Princess Xiao Zhou is the younger sister of Bai Lu Yan, Emperor of the Yin Dynasty, ruling family of the Eastern Land. She is the daughter of the Ruler of Chu Wei, one of the states under the Yin Empire.
Xiao Zhou is the one that suggests inviting Lü Gui Chen to the imperial palace, in order to support the Emperor against the rebellious forces within the Empire, but with the time she starts falling for him and regrets involving him in the inner fights of the Empire.
(Source: MyDramaList)