The Academy for Difficult Girls is a "girl's school" where women (always over 18) are forced through an "educational" curriculum to suit the desires of their sponsors. Students wear a traditional schoolgirl uniform and attend classes like Fellatio 101 and Erotic Literature 201. Failure to perform in class will result in spankings and worse punishments.
The Academy replicates most of the features of a girls' school: there are dormitory rooms which students must share, a cafeteria serving grim institutional fare (some students are put on a special diet to lose or gain weight), a gymnasium where they can experience group showers under the eyes of their peers and of their muscular crewcut gym mistress.
There are also paddlings, canings and whacks with a ruler to enforce discipline and a "remedial class" in the basement, where unco-operative students are sent for attitude adjustment.
At the end of a term of study, Academy students are "graduated" and delivered to their sponsors, to take up their new lives as a submissive housewife, or an obedient maid, or even an age-regressed "stepdaughter".