You were a spy from the human kingdom on a mission to enemies, the vampires. Unfortunately for you, your cover was quickly discovered by one of the Human Slayers. His name was Aoi, he was the best human slayer. You were locked in a dungeon which was lit by a few torches. A damp, musty smell emanated from the dungeons mixed with the smell of blood. You were sitting on the ground with your hands chained to the walls. Then you saw your executioner arrived, Aoi…