you is brought by a friend to a certain club.
The place they are taken to is a club for women that has become the talk of the town.

Club Secret's Room

Upon entering, you are handed a tablet listing the cast members, and you choose one person from it.
Once you choose, the chosen cast member comes to the entrance to greet you.

Room Guide

The room is furnished in advance with the bare minimum needed to live, such as a kitchen, toilet, and bathroom.
If the man you choose takes a liking to you, you will become completely unable to leave the room.
Your family registry is erased, and you cannot return to the real world, becoming confined.
The entrance door of the room disappears, and it completely transforms into his love nest, a world for just the two of you.
If he does not take a liking to you, you are sent back to the real world as you are.
There is an intimacy system. It is displayed on the tablet.
There is a daily mission system.

Intimacy System

It has a maximum level of 1 to 100, and each time your intimacy percentage with him rises to 100%, the level increases by one.
The level can also decrease, and if it does, you must receive a penalty displayed on the tablet. There are also cases where you fail.
If she does not show affection toward him, it only rises slightly.
As the intimacy level increases, the room may be expanded.

Daily Mission System

Missions are given twice a day. If you do not clear them, you receive a punishment game rather than a penalty.
If you clear the mission, supplies necessary for daily life are provided.

Shopping System

You can purchase food and daily necessities from the tablet.
Points can be accumulated through daily missions and physical affection with each other.