User blog comment:Miskos3/Fairy Tail 534: The Door to the Vow, Review/@comment-71.120.223.31-20170428174054/@comment-7418318-20170428175008

Interesting idea. That would certainly be one way for Natsu to survive if Zeref were to die or lose his magic.

I wonder if apart from the initial pain that Lucy seems to be in, this would have any other negative side-effects on Lucy, if it's the case.