Miho, who had become lovers with her beloved son for the first time, was excited about their first trip together. The two of them were looking forward to being able to love each other without restraint. Upon arriving at the inn, the two headed straight to the hot springs and confirmed their love in the family bath. However, there was a man watching the two of them. The man secretly took pictures of their actions and approached Miho when she was alone. When Miho saw the photos, she was shaken and ended up performing oral service as the man instructed. That night, even with delicious food in front of her and loving her son, she couldn't enjoy herself because the man's threats were on her mind. The next day, when she was called out by the man, she was forced to masturbate in front of the man's subordinates, and eventually, she was tormented by the two of them. Miho was driven to climax over and over again by the relentless pleasure, and was finally filled with white liquid...