A schoolgirl in a uniform spends a whole day in a brothel undergoing masochistic training; a record of the lewd imprisonment and discipline by older men. Misaki Oto SDAB-300

A secret, high-paying part-time job she started without telling her family and friends. A naive young girl, innocent and unaware of the world's harsh realities, is subjected to the wanton abuse and violation of her underdeveloped body by strange older men…