Fengxian

Fengxian was a high-ranking courtesan at Rokushoukan, a senior sister of the Three Princesses.

Once a high-ranking courtesan of Rokushoukan, Fengxian was very beautiful in her prime; however, she had an arrogant disposition and wore a cold expression on her face.

In her later years, she thinned and her skin became covered with rashes and gummas as a result of syphilis.

She was an unsociable and haughty person.

She was skilled at strategy-based board games. She was good at shogi but the best at Go.

[Spoiler] She is Maomao's biological mother. [/Spoiler]

(Source: The Apothecary Diaries Wiki, edited)