Haitoku no Shoujyo
Hiroko arrives at a beautiful mansion as a private tutor for a young girl named Yuki. After feeling some tea offered by pretty girl Shizuka, Hiroko falls sick. Hiroko finds herself tied to the bed, naked. She cannot defend herself from being sexually seduced by Yuki and Shizuka, as they insert sex toys into her available orifices, and perform various sex acts. Soon, the shocking family mystery is revealed. Will Hiroko be able to defend herself? What will happen to Hiroko?