The strongest woman in the Special Investigation Division "Numbers" with an IQ of 228, codename 01 'One'. She receives information that an aphrodisiac is being tested on humans at a certain hospital, and she begins an undercover investigation as a female doctor. With her consummate medical knowledge, she goes inside and steadily approaches the core. However, due to the blunder of her subordinates, she is captured by her enemies and becomes a test subject for an aphrodisiac. She resists her aphrodisiac with her strong spirit and trained body, but her climax pleasure that she amplifies is so crazy that her consciousness flies, and she finally reaches her limit.
