red-light district; pleasure quarters
Refers to traditional entertainment and red-light districts, often associated with geisha, courtesans, and nightlife. Can also appear in compound words like 花柳界 (the world of geisha and courtesans).
In the Edo period, the world of the pleasure quarters was a strict class society.
She was a geisha who made a name for herself in the red-light district.
In his youth, he lived a life of pleasure in the geisha quarters.
Compound of 花 (flower) and 柳 (willow), metaphorically referring to the beauty and grace of courtesans and geisha, as well as the transient nature of the pleasure quarters.