red hoodies and bronze daggers (the secrets you keep glow in the dark)

For a human, Stiles has never been as scared of the unknown as he should be. Always running towards danger, interested in things most people would tend to avoid. His curiosity and thirst for knowledge have often landed him in perilous situations. It’s no wonder he ended up to his ears deep into the supernatural business.

And that’s fine. You have to have at least a few screws loose to survive the madness that are the creatures that go bump in the night. But even for a boy running with wolves, Stiles is strange.

Or

Derek notices things about their resident human that don’t quite make sense.

Or

Stiles is a demigod.