Lucy the Celestial wolf slayer (Nalu)

This is my very first Fanfic, I wanted to make a Fanfic with lucy being a wolf slayer and all since there aren't that many, but please don't criticize because I doubt it'll be any good so please tell me what you all think and I know the description isn't good and it might not make any sense but it was worth a shot .thank you and I do not own fairy tail Hiro Mashima does. I'm making this a Nalu Fanfic and Lisanna is not evil in this story ...

Description:
Every since Lisanna came back from Edolas or as natsu said " the dead", Team natsu would invite Lisanna on missions since well you know. It's been 5 months since she came back and Lucy has started to doubt herself about her magic and strength during missions and such and starts to think how she's the weakest member in team natsu, heck maybe even the whole guild because for a start, she is always saved by everyone or someone while their on missions *cough* Natsu*cough* . It seems that during the past few weeks she started to feel weird and her senses is the same level as a dragon slayers and that she could feel that her magic had increasing dramatically. So one day lucy decided to do a solo job cause Team Natsu along with Lisanna went on a mission with out her. While looking for a mission, lucy finds a job that says needs a Celestial mage to get rid of some wolves that is attacking civilians. When she goes on the mission, lucy is going to discover something new about herself and the wolves.

Who are the two mysterious children that's at the guild watching lucy? How does the wolves know lucy and how are they related to her past? Read to find out ~enjoy~ oh and there will be some OC's