'We are pleased to inform you that you have been accepted at the Royal Academy of Diavolo.'

That is the exact words from the letter that got you into this situation. You were happy to be accepted into he Royal Academy of Diavolo in the devildom as an exchange student from Earth but one of the council members, Mammon, has been on your back every second of your days, watching.

You turn to see Mammon staring into your soul.

His stare doesn't waver. It's kinda scary...