Unspeakable Love - The world outside or inside (Farlan x Levi Fanfiction)

Farlan and Levi Have lived in the underground city for almost as long as they can remember. They dream to go to see the outside world. And not only the world above, but to the world beyond the walls. But struggling and incidents happens them. Despite the high criminality in the underground world that makes them to fight for survival, they had to fight for another reason too... Their deep feelings for each other. Whit years of brotherly and platonic love, the feelings toward each other starts to change.
But that feelings may be unspeakable...