The S-class trial!

You, a death demon slayer, are at the S-class wizard trials on Tenrou island, when something unexpected happen, and you meet the Black wizard Zeref! But little do you know what trouble you are getting yourself into by befriending him!

(This is based around the Tenrou arc!)
Heh. This is a x reader story for Zeref =P
It might be bad, since it's my first time doing a x reader! Hope you enjoy!
I do not own Fairy Tail!