Clumsy and earnest office lady Natsumi, and Risa, an office lady shrouded in cunning, well-versed in the ways of a male-dominated society. The two work at the same company as colleagues, but one day, after touching a mysterious plant called "Incest Rape," their bodies begin to change. Risa suddenly develops an embarrassing, unwanted appendage that arouses shame, and seizing this weakness, Natsumi's suppressed jealousy and rage explode uncontrollably. Their relationship takes a dark, sticky turn toward a futanari lesbian dynamic, triggered by this transformation. A full-length drama depicting erotic and passionate lesbian desires.