Well, I noticed something you can notice too if you look at those images: they are titles of "Fairy Tail Zero", the spinoff by Hiro Mashima that is about Fairy Tail's birth. The Ø fades as chapters go on. So, the only three letters that don't fade are "Zer" and what does that word remember to you? Zeref. I dunno if this's something important or if someone else already noticed it but I would just share that thing with you.