A behind-the-scenes look at a lingerie shop's backroom where girls sell panties. Schoolgirls in uniforms endure lewd teasing from male staff as part of the sales process. The girls are forced to accept vibrator stimulation against their crotch, leaving stains on the underwear as they writhe in ecstasy. Enduring physical contact from men just to sell lingerie, they eventually give in and take a cock. One girl vibrates through her underwear, trembling and climaxing intensely. Even the seemingly innocent black-haired sailor-suited girl succumbs to financial temptation, accepting a cock into her shaved pussy and writhing in pleasure.