Yuna Himekawa, a government investigator, sneaks into an enemy hideout alone to save a colleague who is being held captive by a drug gang. Yuna finally manages to rescue her colleague, but unfortunately she is caught by her organization's boss and is attacked by the drug that her organization manufactures. The effect of her medicine was tremendous, and the men gave numerous tortures to endure the stimulation that the whole body convulsed without yielding.
