Please watch this, this is one of the best anime I have seen. Go and watch it.
Another name of this anime is "Future Diaries". The story revolves around few kids who have access to some kind of future information through their mobile phones, and they have to win the competition to become a god. Their is romance, don't let romance throw you away, it is a very well thought and scripted anime.
The premise initially didn't peeked interesting in me. But damn, I was so wrong.