Ruomen Han

漢 羅門

Ruomen is a physician in the red-light district and someone who Maomao calls "father." [Spoiler] He is actually Maomao's adoptive father and great-uncle. Teaching her medical knowledge and writing so that she can find a career outside of prostitution. [/Spoiler] [Spoiler] Luomen used to be a physician in the imperial palace and had performed a cesarean section for the birth of the current Emperor. [/Spoiler] (Source: The Apothecary Diaries Wiki)