Welcome to Terra 2, a wild world without women. The surviving men have created Marionettes--curvy androids in fleshy female forms--to serve man's every desire...outside of the bedroom, that is. A few special Marionettes are equipped with Maiden Circuits--devices inside them to that simulate the emotions and memories of real women. In short, they are machines...with souls! Otaru Mamiya has been charged with caring for three such Marionettes--Lime, Cherry, and Bloodberry--and recently, their amnesiac former enemies known as the Saber Dolls. After a somewhat rough adjustment period, Otaru's household has settled into a peaceful routine...but nothing lasts forever. An old enemy is threatening to destroy Otaru's happy home...and his life. If that mission succeeds, who will protect the rarest treasure in the world from the evil country of Gartland?