Transported Into An Eroge

Keisuke was a shut in loser who fills the empty void that is his life by playing eroge visual novels. One day while searching for new and interesting visual novels to play, Keisuke stumbles upon a certain visual novel that had just released. It was a fairly basic plot. Collecting girls to add to your harem as you save the world from the forces of evil. However, one thing stood out to Keisuke. The game's rating was "Adults Only", featuring explicit and disturbing scenes. This was a first for Keisuke but hey, no harm in trying something new. Little does he know, he should've thought twice before buying this visual novel. And now, given that he is transported into this world, what seems like the ultimate fantasy of sleeping with hot girls that Keisuke always dreamed of, eventually turns into the ultimate horror...