Alive or dead

( This is my first story so i'm really sorry if it sucks! WARNING: Eren x Levi, Boy x Boy. If you don't like it, don't read it. I DON'T OWN ANY OF THE CHARACTERS) Levi is an assassin with a perfect record. He works for an organization called the Survey Corps, the most feared and deadly group of hunters in the underground. Eren knows for sure that he will be the next target. What will happen once their paths cross? Will Levi be able to finish the job? Will Eren escape or be killed?