Reiko, whose husband is assigned to work alone and lives with two mothers and children. She recently gets used to her son's friend, Kashiwagi, who visits her house, and she unknowingly forgives her. However, Kashiwagi, a single-mother family who shows a strange attachment to her motherhood, pushes down her defenseless Reiko. Reiko who continued to be squid with a neat and relentless caress that her husband's plain SEX does not have. She was thoroughly awakened by a youthful piston to the woman who slept within herself. As she continues to be tampered with every day, her body eventually falls down ...