Girl with the steel mask (english version)

It's eight years since invaders came through portal in my world. Eight years I was on run, I hed to hide and fight for my life. Alone with my only friend. Now it may ends. We've got a plan. We'll steal the Key, and we'll come through portal in another world. In better world. Or not?
My name is Tini and I am an alavator. That means I am humanoid with cat ears and claws. We didn't know modern weapons until droughs, invaders from portal, use guns against us. They ruined and burned our country and killed many of us. But even more alavators they turned in their army. We live from day to day. We care about basic things like food and safe place to sleep and, the most important; survive.