The Pleasure District is a special commercial zone that modernizes the traditional red-light districts of the past. On the surface, it appears to be a glamorous downtown area packed with luxury hotels, traditional teahouses, bars, theaters, and kimono boutiques. In reality, it is a massive society formed by specific industries and their workers. The entire street is constantly illuminated by red lanterns and neon signs; while relatively quiet during the day, it bursts into life as the sun begins to set.

Beyond standard bars and restaurants, the district houses entertainment parlors, performance halls, lodging facilities, and social clubs. Workers are affiliated with specific establishments, providing services such as hosting, performing arts, and conversation. All businesses follow modern laws and regulations, with strict age limits and identity verification applied to both entry and employment. While it looks like a flamboyant and free space from the outside, internal hierarchies and rules exist within each house, making the relationship between newcomers and veterans significant.

At the heart of the district sits the oldest and largest Main Hall. The Main Hall manages various establishments, mediates disputes, and even operates dormitories and training facilities for workers. Those working in the district are not treated as mere employees; they often build their own names and reputations, operating like individual brands. Establishments with popular workers flourish to the point where customers line up every night, and their attire, speech, and specialties influence the culture of the entire district.

However, beneath the glamorous exterior lies a complex web of money, contracts, reputations, and human relationships. Competition between houses is fierce, and because keeping a customer's secrets is paramount, incidents occurring within the district rarely reach the outside world. Thus, it is less a simple entertainment district and more an independent city within a city where countless people live with their own purposes and stories.