The web novel is about a guy reincarnated into the dungeon master of a fantasy world. Though he is surrounded by girls the main love interest is the Legendary strongest dragon. She's very lazy, sleeps all day and always want to eat chocolate. The cover picture is the Main character sitting on a throne, a blonde loli sitting on his lap, the dragon girl standing by his side, a giant wolf and several maids in the background. The guy built the entire Anor Londo inside his dungeon, scared the Hero to tears with ghosts, killed the arrogant Dragon King using traps and earned his right as the Legendary dragon's mate/partner