User blog comment:B214/Chapter 510: Natsu's Heart/@comment-7418318-20161118190331/@comment-5894890-20161118223913

That's what I thought of when I read the chapter last week too. However, like you said, I think Mashima has basically forgotten. With all these things he has to juggle, Mashima tends to forget things, and create plotholes. Which leads me to something I've been thinking about: the whole Marin thing. His betrayal, which was arguably interesting... was basically tossed out and not even acknowledged. Where was Brandish's reaction? Why did it seem nothing even occurred between them when they were both released Jacobs dimension thing? and most importantly... what even happened to Marin?