Wei Yiyi

She was the legitimate successor to the Medicine Order but was poisoned and maimed by her then fiance Lin Jun and Rong Xin.

When she came to Azure Dragon Country to heal a patient Gu Ruoyun knew that her reputation would help make her money for the Devil Sect to grow. When Gu Ruoyun met her she gave her a Beauty Rejuvenation Pill which healed her maimed face.