Yuma Izumi, a first-year high school student!! I live with my father, but my father, who is an archaeologist, is almost never home, so I live alone. But one day, a mysterious creature covered in a white cloth suddenly descended from the altar of his home... Its true identity is Nantes, the Egyptian god Medjed!! and…. The cruel and pure-hearted Medjed and the strange "under one roof"... Yuma's daily life is full of happy happenings!?