User blog comment:Real Godisme/Fairy Tail 100 Years Quest Chapter 2/@comment-7418318-20180726170654

Yeah the self-taught Dragon Slaying doesn't make sense, unless he's a 2nd Gen and he meant teaching himself how to use the Lacrima... but then why not mention the crystals?

And the existence of those Dragons and this one preudo-DS makes no sense. Acnologia was very clear on this head-count of remaining Dragons.

How does Touka know about Briar? Could she be a former Avatar member? Maybe even the Virus Girl (Mary was it?) in disguise? Her happy attitude could fit, if she's supressing (most) of her sadism.