[quote=Matryoshka]
Question: How old are the academy students? Is there a fairly large range in ages depending on when the student began associating with demons, or are they all from a certain age group?
[/quote]

[quote=Fell]
Quick question, what is the year level to age scale?
[/quote]

First years: 14-15
Second years: 15-16
Third years: 16-17
Fourth years: 17-18
Fifth years: 18-19
Sixth years (optional year of learning): 19-20

Six years are basically alumni, they have graduated but chose to remain around to gain more knowledge before going out into the world. Students who chose to do this are usually ones who study healing and that. And anyone who stays after six years in the high school part of the academy usually get employed as staff.

There is a primary school for those who's families decided that they wanted them to be safe, or who's parents wanted to continue hunting, ect.

It's up to you how you want them to go through the schooling system, they could have gone to a human school before they got to the academy.