To commemorate Nami Okimiya's second anniversary as an exclusive star, a new tight bondage film is released! Nami begins working as a housekeeper for her husband's boss, Mr. Ozawa. One day, she accidentally witnesses Mr. and Mrs. Ozawa engaged in an SM session. Confused and shaken, she can't get the image out of her mind—and soon starts secretly spying on them again. Eventually, Mr. Ozawa discovers her voyeurism. Overpowered and completely tied up, she is toyed with against her will. Yet, as she's dominated, she awakens to new pleasures, her body growing increasingly sensitive to the intense stimulation.