Zoku Tsuma

Busty teacher and wife Ikumi live a double life as a sex slave. Her husband discovered her secret one day. She has been desperately trying to protect her sister and has been blackmailed into performing many horrible and lewd deeds including anema and gangbang blackmail sex with her students. Unfortunately her sister Shizuka starts to become suspicious and looks into the situation, finding herself falling right into the lap of the men taking advantage of her sister and got fucked by the old guy who commands lewd acts to her sister.