Based on the manga by Monorino.

Episode 1: A daughter decides to pay off her family debt by sexing the loan sharks and being their new fuck toy.

Episode 2: Bunch of dudes have had enough of the class monitor in school. She needs to be taught a lesson.
Preferably with a dick in her mouth. And ass. And pussy.

Episode 3: Bunch of short stories involving teachers and students participating in extracurricular activities - particularly of the gangbang variety.