User blog comment:Miskos3/Fairy Tail 514: Dragon Seed, Review/@comment-25334245-20161213010108

Great chapter :) I agree that the back story of Irene was very interesting.

I also think they may have foreshadowed this from the beginning. In the anime, when Erza is very angry or down right pissed, you can see her eye change color. The first time I saw it was in her fight against Jose, and have been seeing ever since. It was something I was always curious about, but attributed to her stay in the tower.