User blog comment:Retro7/Chap Review: Chapter 256 Seven Empty Years/@comment-4552581-20111026141409

OH!!, glad you pointed out the "7" re-occuring motif of the story.

The Dragons disappeared on X777 7 years had passed since the Tenrou Arc

I forgot the rest, but i'm sure Hiro Mashima is setting up something here... hrm...