Soooo- In the time that you, the sole human of the group, were gone, the Academy somehow got a monster hunter masquerading as a student in it. A monster hunter, in the Academy, for monsters.

All in all, it went about as well as you'd expect it to, culminating in your six friends from the Academy, being forced through one of the rifts in spacetime, out of the pocket dimension holding the Academy, onto earth, and they left to the one place they managed to trace you to. So they're at your house. Your family's house, in specific. Six, clearly not human people, outside your front door, as you're doing Christmas decorations, at.. what, six in the fuckin morning?