This video is a compilation of works submitted to the SM magazine "Mania Club." [From the submitter, Sachiyo (pseudonym)] Sachiyo is a hopeless mother who is being trained as a female slave by her own son, Kou. Kou was an excellent student and was a proud son who went on to a major company from a top university. He was in a position to take over her husband's position and lead many employees. But this son was a pervert and saw me, his real mother, as a "woman." Furthermore, due to the influence of a middle-aged man named S who he met online, Kou had developed a sadistic SM tendency. Before he knew it, Kou had begun to want to play with me as a slave and violate me. When I received Kou's shocking confession, I was overcome with despair and felt a strong sense of guilt for not being able to notice my precious son's twisted sexual tendency. I wonder how much Kou, who has such a serious personality, must have suffered... Even though I knew it was wrong, I accepted my son's request and crossed the line... Scene 1: My upper body was tied up with rope and my pussy was tested for lewdness. No matter how hard I tried to hold it in, I couldn't help but moan in a lewd way. Every time, Mr. S beat me mercilessly with his slaps and whips. In the end, my face was covered in drool and tears. I was tied up all over and whipped a lot while being tortured with clothespins. I'm sure my screams echoed outside the room... Scene 2: As a reward for working hard on my training, I was allowed to enjoy Mr. S's cock. As I sucked it enthusiastically, it gradually got harder and bigger, so he inserted it into my wet pussy. Every time he pistoned me, I felt so much pleasure that I almost went crazy, and I forgot about Kou's presence, who was recording me on video camera, and I was drowned in pleasure. Scene 3: To imprint in my mind that I was a slave of the lowest class, I was forced to pee in front of others and urinated in my mouth. From the hot wax to the forced orgasm, I forgot that I was a mother and felt my mind breaking down. Scene 4 - With my hands tied behind my head, I was made to climax over and over again with a vibrator, and finally peed in my underwear. As punishment, S stuffed my mouth with soaked panties and urinated on my head. Then, my whole body was tortured with a strong water jet from the shower, and finally, I was submerged in the bathtub many times and water tortured.