The nostalgic wind aerial world near the modern world here, the military affairs base of the large landside. Woman investigator Yuki been captured with elder sister by organization of enemy country. It is confined to the gloomy basement called a questioning room, pleasure and the pain come to accept a becoming it violent SM humiliation questioning harmoniously on earth. Yuki who might never surrender even if done what kind. However the elder sister is already transfigured by training, Yuki is attacked with questioning...!! The fate of the enormous breasts woman investigator of two people without the refuge very!?