I'll Catch you when you Fall

( Warning, spoilers up to season 3)
Bertholdts always watched and helped Reiner, even when they were warrior candidates. So now in their final year of training in the 104th cadets, he notices two things, one he will squish, the other... Reiner slipping, but he needn't worry too much he thinks, after all, he'll catch him if he falls.
(Cover in the works, will post a chapter every week, all written on paper so it won't flop like the pennywise story, did I spell something wrong? point it out and I will fix it :)this note will be deleted when the story is finished.) Part 1 of the Falling series