My idea is a small college town where students of all walks can come and live. This includes those from Hades. Each group will go through a special entry orientation because the females will eventually go to Hades to live. Each will have to sign an agreement that they will not speak of what goes on in this “ Closed College Community”.  Each student will wear a college ring on their right hand ring finger. The left hand ring finger is reserved for a bonded pair to seal their deal on their marriage.  The Demon will have to a Prince or someone with at least a large manor because he will have to offer something to the deal to entice the female to go with him (the demon).
Most of the activities will happen after classes, weekends and excursions. Classes may be mentioned but we will not be required to actually have the classes. 
Are there any more ideas to add to this for a remake?