Gloomy robot otaku Akutsu Eita's new roommate, the sexbot Agatsuma Makina, turns out to have nothing but wrong ideas about the, uh, mechanics of the act! And her robo-sister Mimika is also targeting Eita's virginity! Speaking of targeting, the girls end up taking possession of a well-armed warbot whom is also after Eita...but she's out for blood! The bots are bearing arms, and baring it all, in this four-color lovefest!