Codenamed 01 "One", she is the strongest woman in the special investigation unit "Numbers" with an IQ of 228. After receiving information that aphrodisiac human experiments are being conducted at a certain hospital, she begins an undercover investigation as a female doctor. Using her flawless medical knowledge, One infiltrates the inside and steadily approaches the center. However, due to a mistake by one of her subordinates, she is captured by the enemy and becomes a test subject for aphrodisiac rape. She resists the aphrodisiac with her strong mind and well-trained body, but the increasing pleasure of orgasms drives her to the point of losing consciousness, and she finally reaches her limit...