Ling Xi tries many times to make medicine and is finally done it. She goes to a really cold pond to trial it to ensure it will work on Jiu Chen. Qing Yao secretly makes medicine for Jiu Chen and gives it to Yung Feng. He becomes intrigued with the doctor. Jiu Chen tells Ling Xi that he will take her medicine over her sisters. (Source: frankly at MyDramaList)