Merry Christmas, byakuyarox1! As you probably guessed, I'm your Secret Santa for this year! I decided to draw Rin, mainly because I've never actually read Blue Exorcist before this challenge, and I wanted to do something different. I quite enjoyed it, needless to say.
I couldn't resist throwing Blacky/Kuro in there. He's just so cute.
Anyway, merry Christmas, and I hope you like your present! :)