In this work, a masochistic woman is completely restrained with iron restraints handed down from the Middle Ages in Europe, and her anus is thoroughly tortured. The sacrifice this time is Yua Nanami. She is embarrassingly naked and unable to move, and her training begins. She is slapped hard on the cheeks and breasts. When a big cock, various toys, and a pear of agony are inserted into her anus one after another, she climaxes between pain and pleasure.