User blog comment:Miskos3/Fairy Tail 534: The Door to the Vow, Review/@comment-30338537-20170428172117/@comment-30338537-20170428174500

Imagine Acno passing through the door at the same time as Zeref. The lad goes all the way back, trying to rewrite his life and escape being Acno's plaything for all eternity only to have Acno drop on top of him the moment he arrives in the past.

Well, he has infinite Magic, so he may be able to win.