User blog comment:Marco the Marine Admiral/Poll: Calamity's Final Opponent/@comment-7397924-20131028072234/@comment-4829046-20131028153218

Its from Volume 21 Bonus Guild Cards. I actually made a blog to find out. :/ And the description is supposed to say that when she was young, Kinana was transformed into a snake by a malicious Mage. She was turned back by Makarov after he realized that she was actually a human. Kinana had no recollection of being a snake when she was first turned back. And joined Fairy Tail as an employee rather than a mage but still started getting some take-over magic training from Mira.