With her memory gone, Ruri wakes up in an underground labyrinth built by a number of investors.
The rooms are separated from each other by a special door that opens with continuous climax energy.

Why was Ruri taken prisoner? What is this facility and who is behind it?
If you can escape to the surface and regain your memory, you may be able to find the answers to these questions.

-Escape game at its orgasm
This is an escape game and puzzle adventure where you have to solve a series of puzzles in a series of rooms.
The game is a puzzle adventure where you have to solve a series of puzzles in order to escape.

-Learn to masturbate!
In the beginning, Ruri only knows how to masturbate standing up, using a brush to stimulate her vagina.
You will find more patterns as you find new ways to play, such as special masturbation.

Masturbation can be done at any time.
It just doesn't have enough energy to open the door.
If you get stuck, try to find a mechanism that can be activated by masturbation.

-Change of clothes
Ruri will wake up in her underwear and sweater.
But as you explore the room, you may find a new outfit.