Waiting for him.... (Zeref X reader)

Exactly as it sounds, y/n m/n l/n an ephemeral celestial(pronounced ih-fem-er-uh-l) dragon slayer member of Fairytail finds the black mage, Zeref and takes pity for him. Y/n finds out shes immune to the dark mage's death magic and slowly, Zeref and y/n start to become friends, despite Zeref sending her best friend away. Will their relationship last just as an friendship.. or will it turn into something more? Will the consequences of their relationship affect y/n's guild?
Aside from that, Aisha Alexandria Ryder, an elemental mage who controls the 5 elements of life, Fire, water, air, earth and spirit finds herself getting distant from her guild and family. Aisha reluctantly leaves the guild to find Acnologia as she was forced to by Zeref in order to save y/n's life and meets the dragon king..... Will she die? Or will the dragon king see something in her and give her mercy?

Disclaimer: I do not own fairytail, or the characters or the image used for this book cover. Only edited it but the original picture is Hiro's.