Cage of Pleasure

"You're so dirty. Begging for me, your master..." For a maid like Kayo, her master, Shiro, was someone from a totally different world. But the painful expression on his face that she accidentally saw stole her heart. She wanted to do something for him... But what he demanded from her was... Shiro plows her pure body, which had never been touched by a man. This surely should not be allowed, but Kayo gradually drowns in the pleasure she receives...