Alone drinking with her boss, whom she hates, at a hotel on a business trip. Aino Rei, an office lady, falls asleep, exhausted and under the influence of alcohol, with her legs wrapped in black pantyhose exposed. Her defenseless sleeping face and her underwear peeking through her pantyhose cause her boss to lose his mind. He begins relentlessly fondling her pantyhose while she sleeps. When she wakes up, she is already penetrated by a man's penis, and the despair and irresistible pleasure of the flesh hit her. Her black pantyhose are forcibly torn open, and her skin, steamy with sweat and love juices, presses against him in a moment of immorality. At the mercy of the thrusts of the man she hates, her body falls into the worst climax.