I wanted to explain some things about the Demon Empire:
0 - 15 - 1st class citizens
16 - 25 - 2nd class citizens
20+ - 3rd class citizens
14+ - they need to have a job
30+ - can be guard
35+ - can be a head guard/capitain
46+ - can be a Royalty but need to be married
20+ - marriage is allowed (under that age is forbitten)
20+ - miner job is allowed
18+ - this job is allowed (also need to have some knowledge about things that are used there)
14+ - all the other jobs are allowed
How to be a guard:
You need to get through the Guard Training. Then when you passed it you need to show the skill of the Patience and Calmness in hard situations.
Head Guards need to be in the Army for at least 10 years.
I hope I explained some things about the Demon Empire (age of each class, jobs, guards and capitains/head guars and the rest)!