Rumors speak of a secret service offering extraordinarily intense pleasure. Bored with daily life and trapped in a sexless marriage, Mio Futaba surrenders her entire body. Restrained and covered in oil, she grows hotter under the practitioner's sensual techniques, writhing and convulsing until she loses control. Toys push her close to blacking out, and pleasure finally conquers her completely. She begs for more, moves her own hips, and chases ecstasy her husband cannot provide through one orgasm after another.