Help Me With My Manga?

I agree with Amber. They shouldn't both be, I mean, that would make it better. Kinda like she has to protect him from all of the other devils or try not to kill him herself. I just really don't suggest they both should be because its too much of a coincidence and it will need more drama. I like the plot ,before that part alot though. Yuu should be shy but popular and nice and Yuzuki Outgoing but maybe the other way around... I don't know. Maybe after he tries to stop her and he loves her truly and wants her to stop. After that you should be able to think of something..