Code name 01, “One,” is the strongest woman in the Numbers special-investigation unit and possesses an IQ of 228. After learning that a hospital is conducting human experiments with aphrodisiacs, she infiltrates it disguised as a doctor. Her flawless medical knowledge takes her steadily toward the operation's center, but a subordinate's mistake leads to her capture. Used as a test subject in an aphrodisiac-fueled sexual-assault fantasy, she fights back with her trained body and iron will, only to be driven into intensifying orgasms until she nearly blacks out and finally reaches her limit.