It has been a tradition for women to be the head of the household for generations. Like the praying mantis, it uses men only for fertilization and then disposes of them. Therefore, the Daitorou family is a crazy female family whose sadistic lesbian tendencies have been amplified to the extreme. Hana, the head of the family, and her beloved daughter Minori, who own a huge amount of assets and live an elegant life. The next victim of the distorted sexual desire that has been inherited through a long bloodline is Minori's old friend, Fuka from the orphanage.