Crystal Liu, better known by her stage name Liu Yifei, is a Chinese-American actress, singer, and model. She has appeared multiple times on Forbes' China Celebrity 100 list and was named one of the New Four Dan actresses of China in 2009. She is widely known as "Fairy Sister" in China.
Several stories unfold in different timelines, but even though they are independent and take place over five centuries, they are all related and some have repercussions on others, intertwining drama, mystery, action and love.
