Kaoru Yoshikawa, a senior investigator at the Kanto Narcotics Control Bureau, had hated drug crimes since she was a child due to the influence of her father, who was a bureau executive. Kaoru determined through persistent investigation that the organization spreading illegal drugs in the streets was the "Ichito Renmei"! She single-handedly infiltrated their hideout, but fell into the Ichito Renmei's trap and became a prisoner. Ironically, she is injected with a powerful aphrodisiac that she had been pursuing, but she endures it with her strong mental strength... but...