Found a pretty interesting manga you might want to check out....
It's called mirai nikki.
High school 2nd year, Amano Yukiteru, is a boy who has problem making friends. He thinks of himself as a bystander and will always write down everything he sees in a cell phone diary. Tormented by solitude, Yukiteru began to imagine things like a friend called Deus X Makina who is apparently the Lord of Time & Space. Seeing Yukiteru's miserable state, Deus gives him a new ability. His diary will now record events that will happen in the near future. Yukiteru is then forced to participate in a game which the winner will become Deus's successor.
I find it pretty interesting so far. Oh, and just a warning, new releases aren't really coming out for it so often, so you may be left on a cliff hanger <_<.
Anyway, I read it here
http://www.onemanga.com/Mirai_Nikki/
