ICHIKA belongs to the secret society 'Diana,' which specializes in punishing bad men. The Imosenzaka Group sold suspicious aphrodisiacs disguised as beauty supplements, deceiving women and getting them hooked on drugs. To punish these despicable individuals, ICHIKA infiltrates their hideout but gets caught. Then, unable to move hand or foot, her hidden M nature is gradually exposed. In the end, she transforms into a woman so lewd that it shocks the men.
