Mature Content Description

The developers describe the content like this:

all characters are over 18 years old.
The game contains nude pictures of characters and nude pictures of public scenes.
Please note that the content of the image may involve involuntary sex.

About This Content

This is a Horizontal exploration horror suspense puzzle game. The story takes place in a research institute in a remote mountainous area. Ordinary researchers were involved in a conspiracy because of an accident. In order to save the missing friend, the protagonist begins to investigate the matter in depth. With the protagonist's investigation, the truth slowly appears.
The game is the background of the Cthulhu horror story, which can bring you a tense and exciting experience.
You can use the A or D keys to move the character left and right to explore. Solve puzzles and advance the plot by collecting clues and props.

This DLC contains 2 adult-only scenes that you can get by exploring the scenes.