this is about a school that teaches teachers to be exhibitionist, the teaches are taught by the students to do this.
their was also this other manga about a teacher being blackmailed and if she didn't obey one of her students would be in trouble or something. she did some pretty crazy stuff that was given to her from her other students. i remember that in one of the chapters she had to go naked in front of the school with another person or something. There was also this part where she wore this nappy and was told to pee during class and that they could detect weather she did that or not.
p.s if you have another exhibitionism manga you could recommend please do!