Chisato, a mother who feels lonely as her son becomes busy with his studies. At such times, she is seen masturbating by her son's friends who gather for studying and is coerced into giving in to their advances. Her long-forgotten carnal pleasures ignite her desires... Then, another friend torments her fiercely with a toy, making her writhe in agony as she is punished with a vibrator beside her son. She succumbs to the young bodies of her son's friends who visit when he is not around...
