All the men of the world have died and women have rebuilt society along a new version of gendered lines. There are ADAMs, and there are EVEs. ADAMs are given the privilege associated with male roles and EVEs are the women of the world.  The story follows the arrival of Koshiro Aoi at the extremely elite school of Kingdom, her subsequent run-ins with the elite of the school and how she infiltrates the school leadership in order to take it down from within.