This work compiles a submitted story originally featured in the SM magazine "Mania Club." The shocking account comes from a contributor, Sachiko (pseudonym), who reveals being trained as a "female slave●" by her own son, Ko. Ko was an exemplary student—graduating from a top university and securing a job at a major corporation—yet beneath his success lay a deeply twisted sexuality. Influenced by an older man he met online, Ko developed strong SM tendencies and gradually began to view his mother, Sachiko, as a sexual object. Eventually, he came to see her as a slave● to dominate and sexually exploit●. Upon hearing this confession, Sachiko was overwhelmed with despair and guilt, regretting her failure to understand her son's inner turmoil. The narrative delves into Ko's psychological suffering and the complex emotional descent that led him to this point. In Scene 1, Sachiko undergoes training under an S-man, forced to masturbate in front of him and climaxing shamelessly multiple times. She is repeatedly brought to orgasm by his hands, and as punishment for her lewdness, is urinated on. Her son Ko, filming the entire scene, feels an abnormal excitement watching his mother degraded. Scene 2 escalates into even harsher discipline: prolonged spanking, forced deep throat, and an enema punishment. As she endures abdominal pain, she desperately pleases the cock○dick○, while the scene culminates in the humiliating capture of liquid forcefully expelled from her anus. This work presents an intensely shocking portrayal of a distorted mother-son relationship, the emergence of BDSM desires, and the tragic consequences that follow.