A living hell for an undercover investigator who falls into a trap! For generations, women have been the head of the household. Like praying mantises, they only use men at the time of fertilization and then dispose of them. This has led to the sadistic lesbian tendencies of the Daitouro family, a crazy female-line clan. The head of the family, Hana, and her beloved daughter, Minori, own vast assets and live an elegant life. The next victim of the twisted sexual desire that has been passed down through their bloodline for many years is the female investigator who has gone undercover alone to arrest the two!