The female spy "Emily," who boasts her courage as a selling point for the super-elite intelligence agency "Sea Devil," makes a mistake and is captured by a criminal organization. She is forcibly injected with cruel aphrodisiacs, and her female body becomes sensitive. She is forced to taste a humiliating pleasure hell she has never experienced before, and her female parts are developed. Eventually, while bewildered, she spasms her body violently and cumming intensely, revealing her masochistic side.