This work compiles footage shot by Kaori (pseudonym) and her master, Motomiya (pseudonym), who met through the reader correspondence section of the SM submission magazine "Mania Club." Kaori is a quintessential female masochist who, since childhood, has been unable to suppress intense masochistic desires, repeatedly indulging in self-degrading masturbation to satisfy her perverse fantasies. Fated to meet Mr. Motomiya, she was drawn to him and vowed to become an anal-only sex slave while remaining a virgin. After seven long years, on Kaori's birthday, she finally experienced a deeply traumatic and humiliating deflowering. In an intensely graphic scene, a grotesque artificial phallus she purchased herself from an adult shop was inserted into her virgin vagina by a stranger—a prostitute she had just met. This work realistically portrays Kaori's profound masochism and the complex psychological background behind it. Viewer discretion is advised. Please note that this is a submission video filmed by amateur BDSM enthusiasts, not a commercial adult video. There is no acting, staging, or narrative elements typically found in mainstream AVs. We hope you appreciate this as a raw and explicit visual record.