User blog comment:Real Godisme/Fairy Tail 100 Years Quest Chapter 2/@comment-30338537-20180727085336/@comment-24148624-20180727121149

@NoNickNeeded I always thought that Irene being the creator of Dragon Slayer magic was something that Mashima decided on much later because after killing God Serena Acnologia only counted Natsu, Gajeel, Wendy, Sting, Rogue, Laxus and Erik, he should have realized when he fought Irene that she was a Dragon Slayer.