A single mother raising her child alone. Reiko has worked hard, forgetting she was a woman, to raise her son. But now, as her hardships are beginning to pay off, her tightly wound heart has loosened, causing her suppressed desires to overflow. The trigger was when her son's hand, which had been massaging her shoulders, touched her nipple. Due to the backlash of her abstinent lifestyle, she awakened to a hypersensitive body that climaxed instantly just from her nipple being touched. Impulsively, Reiko crossed the forbidden line with her son, and the next day, she went to work with her chest exposed, without a bra.
