In a hospital whose polished obstetrics department hides a completely out-of-control "special ward," temporary doctor Ryuji Hirasaka, entrusted by the director, begins conducting "experiments" on the nurses. From the moment Ren Nanase is caught in his trap, the stakes escalate wildly—coercion, nighttime conditioning, total surrender on the hospital bed... How many more nurses will be "selected"? And what will the special ward ultimately become?