Is it any wonder that they have been acting in similar characters as early as 2005? Crystal Liu Yi Fei got her big break playing Ling Er in Chinese Paladin 1 and four years down the road, Yang Mi clinches the role of Xue Jian in Chinese Paladin 3, also opposite Hu Ge.
Yet the similarities don't end there. Back in 2004, Yang Mi portrayed the titular role of Xiao Qian in the drama version of A Chinese Ghost Story while Crystal Liu Yi Fei headlined the 2011 movie version of the same.
They're not always pitted against each other though as I distinctly remember seeing them together in one of my favorite wuxia series titled The Return of the Condor Heroes with Crystal Liu as Little Dragon Lady (Xiao Long Nu) and Yang Mi as little Guo Xiang.