There is a close relationship between the sex industry and the back alleys of run-down districts, and among them, the underground brothels run by middle-aged women who have worked locally for years hold deep stories unknown to the general public. Mature women in their forties and beyond, each with their own reasons for continuing in the sex trade. Veterans who entered this world in their youth and remain bound to it even today. Behind their everyday lives lie hidden dramas and inner conflicts invisible to the outside—stories filled with life-changing decisions, loneliness, and hope.