Fairy x Aot : Fighting for humanity (Levi/Eren/Mikasa love story)

Lucy Fullbuster, Luna Heartfilia and Akira Heartfilia were finishing their mission. When they arrived at the train, they met an injured unknown soldier who was wearing a uniform. Lucy takes an injured soldier to her house. She had to find out about the injured soldier after listening to him. She had decided to help him to save his world and humanity. An injured soldier was hoping for Lucy, Luna and Akira to save humanity when they were in his world. An injured soldier had informed them to keep their identity for their safety. Before he died, he wished them good luck.

Will Lucy, Luna and Akira save humanity from titans who destroy humanity by eating humans? What will they do when their power gets revealed? What will their fate be in the cruel world?