I've not read yet this manga but after this awesome work I think finally I will do it, I love this kind of Mind Break doujinshis & this genre is always better with better understanding of the characters ;D
Summary: Daidouji returned from her mission badly beaten. The headmaster decided to teach her that there is more to a shinobi's strength than merely charging in and swinging her fists. The most effective method is to first teach her the meaning of being a kunoichi, which in turn means teaching her about sex and seduction. To accomplish this, he put up a special shinobi barrier which seals away her shinobi combat arts and gradually ramps up her sexual feelings. The "men" are mere training dummies. In time, Daidouji realizes that she has limited herself by devoting all her training to physical strength, and had forgotten that she was not just a shinobi, she was also a kunoichi - a woman. She then resolves to plug the holes in her education, and the lesson is concluded for the day.