Kanau is the quiet, withdrawn adult sister the narrator meets at his girlfriend's home. She has no interest in sex, so he decides to drug her and reduce her to a toy. The introverted beauty with huge breasts quickly transforms into a vulgar lust monster who climaxes instantly: pills disguised as contraception lead to drugged creampie rape, aphrodisiacs make her beg for cock, a delivery man joins a creampie threesome, and she is cuckolded beside her own sister until she accepts every perversion.