This is a fairy tail story but I have made some changes.
Lucy Heartfilia was devastated when Lisanna and Natsu declared their feelings to each other. She had always liked him from afar, but never said so. Even then, she tried her best to be happy for both of them, until she overheard Natsu, Lisanna and Erza talking about her weakness, and the overall incompetence of celestial wizards.
As it is, most people ignored her, except Mira, Gajeel, Wendy and Carla, Gray, Lisanna and Happy. And Master, of course.
She decides to train, and become stronger, and encounters Yukino of Sabertooth, badly injured. She is unable to save her, but Yukino relinquishes her keys.
She now has the zodiac gates, and the forbidden thirteenth one. But will she become strong?
Read to find out!
*No there is nothing about Lucy being a dragon princess, it was too unrealistic, although I personally love that plot.*
After an attack on the guild everyone finds out that there's a new enemy who want Lucy, but not just Lucy, her and every other remaining celestial wizard. Lucy is forced to go into hiding, Natsu coming along to help protect her. Throughout the story Lucy and Natsu question if they have feelings for each other, and at one point if they'll ever see each other again. Read to find out how - or if - Fairy Tail makes it out of this battle without a loss.
THIS WAS WRITTEN A VERY LONG TIME AGO AND IS DEFINITELY NOT MY BEST WRITING. SOME PARTS VERY CRINGEY AND HAS AN INCONSISTENT POV. READ AT YOUR OWN RISK.