At the slave market operated by slave trader Kuroda, men who had fallen into debt due to corporate layoffs lived under strict surveillance. Kuroda's selection process was always precise, and once again, three bored Dominatrices arrived to choose new male slaves. Maria, a refined Queen who masterfully balanced reward and punishment, picked a frail-looking thin man who appeared perfectly suited for submission. He was an ordinary salaryman with no prior experience in the world of masochism, but the reality he encountered surpassed all imagination. In that instant, he became completely captivated. With both nipples pierced by massive needles, he welcomed the beginning of his new life.