Shizuka lives with her husband and son. Although she thinks she is happy, she also has complaints. For the past few years, nighttime activities have significantly decreased, and Shizuka has been using self-pleasure during baths to distract from her dissatisfaction. One day, her son catches a glimpse of her doing this. The sight of her vigorously squeezing her breasts, moaning, and dripping with lustful fluids was more than enough to transform his image of a 'kind mother' into that of an 'adult woman'.
