In the year 2XXX, the era of gender equality came to an end, and the era of female supremacy began. Men were treated as beings only there to reproduce, and most of them were forcibly sent back to prison. Day and night, the men were milked of their semen and treated as tools for the female guards' pleasure, as cock urinals... Guard Hibiki, wearing a sexy guard uniform with black boots and a riding crop in her hand, enters the prison to give a group handjob...