Mature Content Description

The developers describe the content like this:

This game contains a large amount of extremely sexual content.
It may not be appropriate for all audiences.
Please make your own judgment before playing the game whether you meet the requirements for playing such games.
The story is purely fictional.
All characters appearing in this game are adults over 18 years old.

About This Game

GamePlay

Enjoy a sensual story while completing tricky puzzles!
Connect the numbers sequentially, using all of the squares on the board
After completing a puzzle, you will unlock a sexy new image and the next part of the story!
Can you complete every puzzle and meet all of the girls?!

Story Background

The protagonist is an ordinary social person with a huge penis. He lives with his sisters at home.
On the surface, they have a harmonious relationship between the siblings, but the undercurrent of desire is quietly growing...
What happens there?

Characters

Mio:

She is gloomy and unsocial, not good at socializing, wears baggy clothes, and likes to stick to her brother.

Rinko:

She loves her younger sister and supports her, but has actually been having promiscuous sex with her elder brother in private.

Features

• 20 sexy and erotic images of beautiful girls.
  
• A fantastical erotic story with girls who have unique personalities.
  
• You can skip the puzzles if you just want to enjoy the story. (Press Enter during a puzzle).
  
• CG Gallery mode. (Click the left and right buttons next to the CG after completing a puzzle).