Boys who have no future prospects are transformed into girls through genderswapping, and they are then raised to become lewd girls in correctional education facilities.

For today as well, is a boy who never once doubted his own belief that he'd become a fine man, who is getting forcibly transformed to become a cute girl.

The way the school works goes along these lines: If you still won't accept the reality that you'll be inferior as a man, we'll have you suck dicks until you accept it.
And then, let's become cute girls to be loved by the actually talented boys.

(Source: DLsite)