Reno Kiyomi is a genuine masochist who regularly answers online invitations for increasingly hard sessions. She arrives fashionably dressed, but a punch to the pussy instantly flips her submissive switch. Ordered naked, forced to kneel, stepped on, slapped, punched in the stomach, and lashed with a rose whip, she begs them not to stop. The pain alone makes her cum and lose control of her bladder. Suspended with her legs spread, her exposed pussy is whipped while she watches another masochistic woman have sex and burns with jealousy. Upside-down suspension, wand and vibrator torment, more whipping whenever she grows faint, and screaming candle-wax play push her mind past its limit. She squirts through a violent orgasm, then breaks down sobbing when the training finally ends.