Yui Hatano finally faces the long-awaited wooden-horse torture. A masked man attacks, binds, and rapes her before days of training begin. The ordeal is actually an elaborate revenge plot by a subordinate she once treated like a pet. Ropes crush tightly around her face, relentless tickling continues under bondage, and one unfamiliar humiliation follows another. Even after her vast career, Yui is forced through multiple kinds of play she has never experienced.