Gingaso is a rose house with a mysterious scent, with a beautiful mother, four beautiful sons and “Akazuma”. Victoria, who was struck by the advertisement for “just a room fee!”, Fell in love with the youngest son! But that son is actually ...! ? A science fiction comedy where the mysterious family that runs a lodging house called "Gingaso" in the suburbs of London are vampire aliens. Includes one shot "Serenade to My Beloved" in volume 2.