Promise me... Reiner x reader

All your life people have been leaving you, for some it was their decision yet some didn't have a say in the matter. Of course that stuck with you, you don't trust anyone but yourself because you never know when somebody will turn their back on you.
But when you join the cadet corps you slowly learn there are some good people that will have your back no matter what. You learn to trust them, they're your family, none of them would do anything to harm you...right?

Of course there is a lot of trauma cuz that's what i like to do okay? This is basically a written story about my oc but i made it Y/n so u could imagine you, your oc or whatever, hope u enjoy this and sorry if there are any grammar mistakes or grammar typos, i make a lot of those lol.
Thanks for reading!