As the year-end approaches, the husband's younger brother, Taiju, visits for New Year's. His former classmate from student days, Kanako, warmly welcomes him. Her unchanged beauty stirs up Taiju's old desires... Unaware of this, Kanako interacts with him affectionately and falls prey to his venomous fangs. Taking advantage of her brother-in-law's inattention, Taiju repeatedly forces himself on her, engaging in secret acts of passion. As she continues to be subjected to his forceful advances, Kanako's body begins to succumb to the thrall of her stepbrother's stiff member...
