you've heard about a legend about a demon named Gabriel, who is searching for a friend, but everyone is scared of Gabriel... You aren't. After you turn off the lights, you say

Gabriel, I'll be your friend.

Suddenly you feel something around your neck, but before you can react, you pass out. Later, you wake up in bed, you think it was all a dream until you see a golden locket, with the words "Best Friend" engraved on it, around your neck