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?
In a particular village, young girls are sacrificed to the ancient tentacle god "Izanami". Two brave souls, Aoi and Kusanoou, are determined to stop this barbaric ritual and hopefully not get prodded in the process.