Happy

ハッピー

Happy is a cat possessing some magical power, which may explain his ability to speak. He can temporarily grow wings on his back to fly, though he is capable of carrying only one person in this form. Happy apparently flies at incredible speed, as it took Eligor less than an hour to reach Clover after Happy caught up with him in mere seconds while carrying Natsu. This is also the only form of transportation that does not make Natsu sick. When asked why, Natsu got angry and exclaimed that Happy was a friend, not a means of transportation; ironically, Natsu later gets sick when Gray gives him a piggyback ride while injured. He is very close to Natsu and quickly becomes friends with Lucy. The three form a team at the start of the manga. Happy is a full-fledged member of Fairy Tail, bearing a member stamp on his back. It remains unknown whether Happy, despite being a mage and a Fairy Tail member, can use his magic offensively.
Happy has a very cheerful nature. Even when facing danger, he maintains a smile. Along with Lucy, he is one of the saner members of Fairy Tail and often acts as the mediator between Natsu and Gray.
Happy's original name was going to be Freyr, after a Norse god. But Hiro Mashima felt it didn't fit him, so he changed the name to Happy to suit the character.

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