Trick an innocent high school girl with a beautiful ass into playing the "Wall Ass Vibrator" game! The challenger is Walnut-chan, a pure and beautiful girl from an all-girls school. She is completely restrained by a mysterious wall and tries to find the right answer from the vibrators that are thrust into her one after another... The harder she tries to hit the target, the more the bumps and movements of the vibrator dig into her pussy, making her feel too much, which is what makes this game so difficult! Not knowing what's going to happen to you makes you sensitive, and the only way to relieve the pleasure is to make your anus twitch, so it must be painful, right? "It feels so good, I don't know what to do anymore..." I know I'm using aphrodisiac oil, but isn't she squirting a little too much? The staff takes responsibility and gives this over-the-top young lady continuous massive creampies!