For generations, women have been the backbone of the family. Like mantises, they only use males for mating, then eliminate them. Thus, the Daitoro family, a lineage of mad women with brutal lesbian tempers, has been amplified to the limit. The head of the family, Hana, who owns a huge fortune and lives a lavish life, and her beloved daughter, Misato. The next prey of the twisted sexual desire that has been inherited in the bloodline for a long time is Minori's old friend, Miyuki from the orphanage.