There were 36 lines in ancient times. What line of work does a brothel belong to?

Among the three religions and nine streams, it belongs to the inferior stream.

Three religions and nine schools of thought (also known as nine schools of thought and three schools of thought) generally refer to ancient religions and various academic schools in China, and are the ranks of the status and professional names of ancient people in China. It also refers to various industries and people in society.

"Dirty servants" include: master, servant, weigher (weigher), matchmaker, pawn, time demon (kidnapper, witch), thief, thief and prostitute.