For many generations, women have been the breadwinners of the family. Like mantises, they only use males for fertilization, then discard them. Thus, the Daitoro family, a crazy female lineage whose brutal lesbian temper was amplified to the limit. The head of the family, Hana, who owns enormous wealth and lives a luxurious life, and her beloved daughter, Misato. The next prey of the distorted sexual desire that has long been inherited in the bloodline is Minori's old friend, Miyuki from the orphanage.