User blog comment:Omega natsu2/Chapter 387: Tartarus Arc, Part 4: Father and Son, Predictions./@comment-24257713-20140606130536/@comment-24784846-20140606132531

We established already that like Part 4 "Father and Son", is similar to "Song of the Sky Dragon", it wont show the Gray stuff in the beginning, we are seeing it later like the thing with Wendy