User blog comment:FairyRaven/Fairy Tail Chapter 387: Tartarus Arc, Part 4: Father and Son, Review and Commentary/@comment-24367018-20140606124105/@comment-77.194.131.35-20140606125218

the only thing i don't like is hte fact Mashima hasn't shown more about the celestial spirit magic or Layla, and about the origin of the CSM, i'm sure the keys are a human creation