A girl, who's a descendant of the Emperor, wants you to be her chief strategist for reasons unknown. She and her sisters are willing to do anything to make that happen. And hey, how can you say no when their incentives are so...compelling?
Takato Keisuke and six females are locked up in a dungeon underground. According to the rules, the only way to escape from this place is to rape all six of them. One by one. Can they escape from here and go back to being normal? Or is this going to change them for the worse?