At an old house in Hokkaido, a lot of stories have circulated about how it is haunted or how certain criminals have once frequented the place and rigged it with traps or placed certain stolen riches in it or both. But recently, certain gossiping has recently revealed that 4 hot girls have recently started living in that house for only at least a few weeks ago. Four girls who often work at the house fully naked and all wearing Blue Overalls. However, their appearance is somewhat strange, as they all take the appearance of Elves. It’s a topic that no one seems to make heads or tails of it. However for one Shinichi Fudo and one Hakari Sujiko, they’ll soon realize that their appearance is whole lot more than what the rumors have led others to believe!