Idol actor：Rui Hizuki
Director：Updating
Categories：Anal,SM
Area：Japan
Year：2021
Introduction：Ichijo who scientifically analyzes female orgasm and promotes the development of new aphrodisiacs. - Doyama is a psychologist and true sadist who continues to pursue the relationship between pain and pleasure. - An inhumane human experimentation battle unfolded by two people who make incompatible claims!