For generations, women have been the head of the family. Like praying mantises, they use males only for fertilization, and then dispose of them. Therefore, the Daitoro family, a crazy female lineage whose sadistic lesbian temperament has been amplified to the limit. The head of the family, Hana, who owns a huge amount of assets and leads an elegant life, and her beloved daughter Misato. The next prey to the distorted libido that has been inherited in the bloodline for a long time is Minori's old friend, Miyuki from an orphanage.