I'm looking for a manga that I read, but I can't remember the name, help?

[TinalGene]

I'm looking for a manga I read while ago. It was about an angel and a demon. The manga starts where they are battling each other, but something goes wrong and they are thrown to earth, both into a brother. The demon gets thrown into the "Good little boy" and the angel gets thrown into the "Bad Boy". Sorry, that's all I can remember PLEASE, I NEED HELP!!! IT'S DRIVING ME MAD BECAUSE I CAN'T REMEMBER IT!

 

[VioletDawn]

It kinda sounded like D.N. Angel, but i'm REALLY not sure. :/