Cang Yue, also known as Lan Xueruo, is the seventh child of the Emperor and only Princess of the Blue Wind Empire. She went around Blue Wind looking for talents to represent the Blue Wind Profound Palace in the Blue Wind Ranking Tournament. She used the Monarch Heart Secret Art to search for talents and found Yun Che. She later ascended the throne as Empress after her father was assassinated and Blue Wind faced destruction after being invaded by Divine Phoenix Empire.