#human students

Not by the gentry, but people do go missing under supernatural circumstances.

That depends on your artistic view of what is human.

Most of them! Those who get possessed or have run-ins with demons can still graduate fully human, and most of the non-human graduates weren’t human when they entered. Only about 6% of human students turn into something Other. 

Humans obviously, demons, half demons, vampires, werewolves, and mylaya. 

1:1:3. So if you have 5 students, one doesn't know, one suspects something is up, and three are either human students who know or are supernatural themselves.

There are a few Halloween traditions around MCU, one being  Joke Costumes, which are a chance to have fun and dress up as the most ridiculous stereotypical version of one of the creatures on campus. Offense isn’t taken, and if a demon decides your horns are really well made or they laughed or something you might get a very small present. There’s the group that always starts off as three students and ends up a whole group who sit in the library and tell scary stories. If one sounds really real and you cant tell if that costume is actually a costume, you should probably not overthink it. The werewolves usually have pack hunts. There’s usually a vampire ball and a demon ball going on. The witches and pagans celebrate Samhain. 

Half demons are treated about the same as vampires and werewolves, so some people treat them like they would a human, some people are distrustful of them, and some people actively hate them for something they had no control over. However, they way they get treated at MCU is still much better than outside of it. for “rules they need to follow” I’ll answer it for half-demons specifically, I hope that’s what you meant. While how tied they are to typical ‘demon rules’ varies for person to person, they all have to keep their true name a secret, be polite and say please and thank you for anything, they must get consent in dealings, and meet any human needs. 

If you want to join mcu with grandiose ideas of being a ‘vampire slayer’ or ‘werewolf hunter’ this school isn’t for you. Not only will you probably die before ever getting to kill anyone, but the school administration really frowns on those sorts of ideas. Vampires and werewolves are also students, paying to attend school.