Kazuhiko Kuroki who worked as a game planner made a hit in a game of Nintendo, and an article enrolled in BD photograph meeting for the study that there was in an evening paper in margin of the So. Be the meetings which BD means Bondage and Taming that is can photograph BDSM by a membership system. Therefore Kazuhiko notices one's hobby. And come to want to tie up a woman. Elderly Sister Yuuko of the Giri by the remarriage of the parent who married Doctor two years ago in such an occasion visits the room of Kazuhiko. The Yuuko did not get along well with a husband, and jumped out of a house.
