Ymir × Fem Reader (historic type)

Explanation on what is going on with Y/n being 3d Christa/Historia

hey people, so idk if it's abit confusing to understand butttt I'll explain as short as I can.

Hange was doing an experiment in her lab with Mobilt and she was tryna make a portal to get to another dimension cuz she want Levi to be nice in another dimension since she read a book about the parallel universe. And she tried. 

Once her work was finished, she call everyone in the scouts. some came, some didn't. And Historia came and Ymir came along just because of Historia. And Hange to everyone what she was creating and she ask for a volunteer to try the portal out for the first time. everyone hesitate cuz they don't really trust Hange and her reckless work. But we all know how Historia is like, "kind" so she volunteered. Ymir was worried but in the end Historia tried it out and DONT ASK ME HOW but they used a monitor to see where Historia has gone and it showed "Y/n" instead of Historia so its like Historia doesn't exist anymore. 

and everyone agreed that Historia is stuck in Y/n's body. So they spy on Y/n for a week. And now they know for sure Historia is indeed stuck in Y/n's body so this all happened. 

and before this end I'm gonna say smt CUTE. Ymir always look at the monitor to see Y/n cuz she thought Y/n is like Historia but a bit more differently and she starts having a bit feelings for Y/n but always deny it every night because she keep dreaming of Historia. So there is a chance Ymir likes Historia.