49-year-old Iori Ryouko, a mother who raised her son alone. Since her husband passed away, she has been comforting her lonely, mature body at night. One day, her son's friend who stayed over saw her masturbating, and even more, that friend violated Ryouko with his young body. Her son witnessed this and, throwing distorted love at his mother, bound and trained her as a sex slave. Ryouko, continuously violated by her son and his friend, found that their young sexual desires kept her on edge indefinitely.
