User blog comment:Miskos3/Episode 272: Fairy Tail Zerø: The One Who Teaches Magic, Review/@comment-24277053-20160220224651

So this is the episode that has the moment that changes Mavis life forever. We meet the Black Wizard Zeref, and he is naked.

Anyway Mavis does something nice for him and uses her illusion magic so he can be around animals and not kill them, what a nice thing to do, and all Zeref will do is pay her back in scorn.

So everyone is desperate, than they learn from Zeref, I have to admit the classroom scenes were hilarious, and I think they had a little filler plot with Warrod's self confidence.

In the end, they all learn magic and Mavis has a new outfit. So the first wizards of Fairy Tail learned magic from Zeref, so in a way Zeref is responsible for Fairy Tail.

Anyway onto Blue Skill and some pay back. Great episode, this episode is really important to the series, more so than anything else in Zero.