User blog comment:IamJakuhoRaikoben/Chapter 253: Let's Join Hands, Review./@comment-180.191.109.233-20111002055500/@comment-121.54.58.144-20111002175950

i think that acnologia's duty is to end things for natsu and other dragon slayers. to restart again. that's why zeref knows him beacause they already met. in the past. and again natsu was completely annialated.

steven ora