Naive Karin, a young maid, is thrust into the mysterious Suzukuri Dungeon by a mischievous spirit. Her innocence is no match for the kinky trials that await her. In the first room, she's bound and helpless as a tentacle monster ravages her virgin body. She struggles and squirms, her cries echoing off the stone walls as the creature's slippery appendages probe her most intimate places.