Fairy Tail: Gates

Introduction
This story revolves around Amirah Radial's perspective as she runs away from the guild that saved her life and uncovers more about her past with each new adventure. She eventually teams up Natsu and Lucy to try and help uncover the truth from her winding dark past. Also, Zeref seems to ring a bell to her. Some time after the Grand Magic Games arc and before the Tartaro's arc, is when this story takes place. Amirah also has information from her former secretive guild. Something about how she is destined to help unlock Destiny's Cage.