At this mansion, the sex party is held every night to fulfill the desires of the priveleged class… In order to investigate The truth behind the black rumors,Performing a undercover actionIn a mansion on the island.Not so far in the futureMechanization technology and androis became more popular,An advanced level of information and communication technologies were establishedIn order to free mankind from the imperfections of living things, It had become more common to have a mechanization of body.Heronie "Rin" was used be mortally wounded,However she survive because of the help of mechanizationAnd her family was being brutally killed in the incident, and her sister was missing.Being picked and trained by agency as an agent, she was looking for a chance for revenge.In order to investigate the black rumors behind the resort land.Rin is going to perform a undercover investigation in the resort land.At this mansion, he sex party is held every nightTo fulfill the desires of the priveleged class.Being fatally reunited with both the target of revenge and aslo reunited with the separated sister"Mirai"… At this mansion,Sex party is held every night secretelyTo fulfill the desires of the priveledged class.An avenger who wants to revenge for the family members.And looking for her missing sister"Mirai"Being caught in the middle of a case and being capturedThe missing younger sisterMiraiThe treating from the main characterfurther escalated?Make her to showThe Ahe face and got fall in the pleasure?