The story of a nurse, Airi Hishima, deeply involved in a passionate kiss with an aphrodisiac-addicted middle-aged man, and her depraved penis, is depicted in IPZZ-155.

Beautiful and serious nurse Airi is suddenly kissed by a middle-aged patient addicted to aphrodisiacs, who forcibly circulates the drug inside her. Unable to control the burning sensation in her body, Airi moves to seek pleasure from the drug and his penis. Her vagina is soaked with the drug's power, and the man's penis becomes erect. Airi experiences orgasm through sex and is trained to use the drug herself. Addicted to the drug and his penis, Airi, after removing her nurse's uniform, bends over and even accepts sexual enhancement tools…