Lust Grimm – is an erotic visual novel about a guy who accidentally finds himself in a depraved world of demons. Whether he can remain innocent or completely succumb to sin depends on the player's desires. After all, with his decisions and choices, he primarily predetermines what will happen next and which of the girls he will like.

The protagonist fell asleep in his usual and pleasant bed and when he opened his eyes, it seemed that nothing had changed. He made breakfast as usual and then went outside to go to work. But instead of the usual neighbors walking along the sidewalks, he was surrounded exclusively by busty women with horns, bat-like wings, and tails with sharp ends. They also looked in surprise at the man who suddenly appeared on their streets. As it turns out later, the protagonist was transported by something to the world of succubi, where he is not supposed to be, and now he will have to look for opportunities to go back to the surface.

The demonesses of Lust Grimm look at the player with some lust, sexual hunger and desire in their eyes. After all, they love to have sex, and there are practically no men here, which forces them to indulge in self-satisfaction. Therefore, the protagonist will be constantly slowed down by beauties, forcing him to stay longer in their company and have a little fun in bed, and it is very difficult to refuse them, especially when they have such big arguments.