From one of the most popular and influential erotic manga artists in Japancomes this twisted tale of a laid-back sadist, a fiery masochist, plus a boy andhis sister. When Ayumo finds a way to blackmail Mutsumi, the icy and aloof honorstudent, he takes full advantage of it to treat her as his slave...but it isn'tlong before she's reluctantly enjoying it! And when her classmate Kenji joins into make a threesome, he soon decides his lovely and innocent twin sister Hinakowould make a perfect slave as well. Before long, all four are caught in a tangleof ropes and relationships and plenty of backdoor action!