Fairy Tail (Guild) - Fairy Tail Wiki, the site for Hiro Mashima's manga and anime series, Fairy Tail.
I just noticed how raven tail is so similar to fairy tail in two ways. One look at the symbol. Two the tail part in both names
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8 Funny Fairy Tail Memes Anime Fans Will Love: "When Somebody Mentions Cake" Fairy Tail Meme