The Verdigris House is a high-class brothel in the red-light district of Li's capital. Managed by the Madam, it is the home of the famous Three Princesses: Pairin, Meimei and Joka. Meals at the Verdigris House consist of a single bowl of soup and sometimes a side dish.

The architecture of the Verdigris House is not fully detailed, but the main building has a grand entrance that can be entered from a prominent location off the main street of the red-light district. It is not clear if the baths and apothecary rooms are in the main building. The annex is an outbuilding that customers are not allowed to visit and appears to be much smaller than the main building.

As a side business, the Verdigris House rents space for a pharmacy. The pharmacy serves a vital role to the Veridris House. The pharmacy was previously run by Luomen, but since his return to the palace Maomao has taken it over, with Sazen and Kokuyou as employees. Pharmacists treat the personnel of the brothel, and the surrounding brothels that can pay.

The Three Princesses are the three top-ranked courtesans of the Verdigris House who are well-known throughout the capital of Li including the Imperial Palace due to being considered the most beautiful and talented of the courtesans, much of the reason for the Verdigris House's fame. It is said that a year's worth of salary is required to spend a single night with a Princess. Pairin is the eldest Verdigris House princess. Meimei is the second-oldest Verdigris House princess. Joka is the youngest Verdigris House princess. Once a Princess retires, the Madam trains another courtesan to take her place.

Courtesans entertain customers through a variety of fine arts or games such as dancing, poetry, Go and Shogi. They will also serve tea to customers. Most courtesans specialize in one or two specific areas.

Just like other brothels, the Verdigris House operates with a rank-based system; the better a courtesan is at her craft, the higher-ranked she will become. Verdigris House holds middle and high-class courtesans.

The price of a visit varies based on the type of service and length of time. Merely having a cup of tea with a courtesan is far cheaper than a night of service and staying an extended amount of time is more expensive. However, the rank of the courtesan is the highest factor; a low-ranked courtesan can be visited at a reasonable frequency and price while the highest-ranked take very few visits each month and are nearly exclusively visited by wealthy officials, artisans or merchants. However, favors can be pulled in order to bypass payment. The madam also has strict rules about how much hospitality is to be extended to visitors even on business.

Courtesans may join the brothel as young adults, or they may start out as "kamuro", young girls who assist and are trained to become courtesans. Because training and amenities take up time and money, courtesans owe the brothel a certain amount of money that is to be paid off through their service towards the brothel. Apprentices receive an initial training, then may receive further training based on their looks and potential. Those without potential start taking customers after their debut. Courtesans typically retire before they lose their youth and beauty before or around the age of 30.