Every morning on the packed commuter train, busty OL Azusa Hikari finds herself secretly dosed with a potent aphrodisiac. What begins as a humiliating assault on her sensitive nipples soon turns into uncontrollable pleasure as the drug spreads through her tight OL uniform. Her full breasts deform under the crushing crowd while her nipples stiffen and throb, rubbing against the fabric with every jolt. From desperate resistance to eager submission, she ends up bent in a corner, creampied repeatedly as the train carries her deeper into forbidden ecstasy.