Okay! I new this anime is totally new, at least when I'm writing this it is, but I had to write a review.
The story revolves around japanese teenager named Okumura Rin. Rin just finished Middle School and doesn't really want to study anymore, so he tries to find a job. However, he is natural troublemaker. Although he was raised in a church together with his younger twin brother Yukio, who is more reliable and more grown-up than Rin. But one evening, sort of unbelievable things happen to Rin and he learns the painful truth about himself in painful way. The demons does exist. And he has some issue with them. I can't really say more, no spoilers XD XD The story is kind of original, but not in everything. I like the way it's all connected.
If you have seen, it kinda resembles Soul Eater.
Ao no exorcist is a new anime, so it has pretty nice and smooth animation with great colors. I had read manga before, so I was surprised with some colors, since the manga doesn't have them. I really like it,though I have seen better. But for a shounen, and for Blue exorcist is this kind of animation great.
Ending and opening are great, and for soundtrack...well I haven't really noticed it. It doesn't stand out, but I guess you could call it average. We'll see when more action will come. Voice actors are pretty good, the voices were just how I imagined they'd be when I had read manga XD
Well, we have Rin, troublemaker who's not good in anything, except cooking. Then his perfect smart kind brother Yukio, their friend, shy naive Shiemi, a strange little odd Mephisto...all kinds of characters. We should also count in the demons.
I think characters are well done, and I love that not all of them are actually directly related to the plot. They have this feeling of reality.
Blue exorcist seems to be a really good anime so far, and I hope it won't change. It opens a whole new world to you, so I guess you won't be bored.
If you like fantasy shounen, demons, and stuff...you should watch it. XD I recommend it XD