The Lord of Isekai Brothels

Story:
In Free City, a famous red-light district full of brothels with a variety of races attracts both locals and foreigners. Suddenly, due to the opening of a competing brothel that provides new and innovative sexual services, the old brothels find themselves nearly out of business. The new brothel is run by reincarnators and the red-light district must find a way to survive its competition.
Game info:
The goal of the game is to unify all the brothels and manage a better business than the competing reincarnator's brothel with cheat-like otherworld knowledge.
There are two difficulties:
Casual mode: There is no ongoing debt. You can outshine the competition eventually in a debt-free situation.
Normal mode: There is a monthly debt to be paid. The brothels are in danger of closing if the reincarnator's brothel continues to attract your customers.
There are three major elements to the game:
-H Battle:
To gain the trust of various races, you must satisfy the head prostitute in each race's brothel. You can sign a cooperative contract after gaining the trust of the head prostitute.
-Research:
You can learn various otherworldly sexual services in the reincarnator's brothel. After learning from the competition, you can further enhance sexual services by taking advantage of your racial traits.
-Open for business:
The true essence of a brothel. Face your competition, learn the skills, and upgrade your techniques!
-Controls:
General：(Mouse)
．Left button：Decide
．Right button： Cancel
-H Battle
．Hold the left button: Begin gameplay actions
．Hold the right button: Speed up action
-50+ base HCG, 150+ CG