A female tutor is attacked by delinquent kids with a water gun during her commute. Having no choice, she teaches her students without a bra on, causing them to become aroused by her large breasts. Furthermore, the delinquents mix in an aphrodisiac and drench her with it. The aroused Ms. Yoshikawa ends up taking her student's erect penis into her mouth, and the emboldened delinquents begin to rape her. However, due to the aphrodisiac, her body cannot stop responding.
