This work was submitted by a mother and son (mother 48 years old, son 22 years old). The mother grew up without any inconvenience as the president's daughter, married a male employee of her father's company (now the president of the company), and her only son grew up to be a proud son with excellent academic ability and a bright personality, and had been accepted into a famous private university and a major company. Such a life that everyone envies was completely changed by a terrible incident. The son had hidden a large amount of mature woman SM porn where a woman of the same age as his mother was being tortured... and even a private dvd containing the act of his son humiliating a middle-aged woman was discovered. Moreover, in that video, there was a figure of his son muttering "Mom..." while teasing the woman. The son, whose hidden desires were discovered, desperately sought his mother as if a dam had burst, and the mother eventually accepted her son. That was just the beginning of a nightmare, and the son, who has SM tastes, unleashed his perverted sexuality on his mother as he pleased. While accepting the terrible act of being treated as a sex slave, the mother awakens to a mysterious pleasure. In the second chapter, we have compiled the scenes where the son, who has awakened to rental training, is being trained by others. There are also some that include the son's childhood friend, whom he has known since kindergarten. Please see this valuable record of distorted mother-son love.