Lucy's strange letter

Achnoliga has been defeated. And now Lucy is given a letter from someone. Now Lucy must go and follow the letter. Who is the letter from? Follow Lucy as she discovers the Heartfilia's dirty secret that they have kept hidden. What is the secret? And watch as Lucy begins to fall in love with her first friend from Fairy tail. But will she have a love rival? Or will their heart be all for Lucy? Will Lucy be able to find Aquarius again?

It isn't your typical Lucy is weak so she has to leave Fairy Tail to get stronger. It is Lucy finding that she was strong the whole time. Just she didn't know how to access that untapped power.