The world isn't a nice place. Wars, corruption, poverty etc... Who wanted to survive, had to fight for it. Not everyone made it.

You're running through the woods, your heart pounding in your chest. "just keep fucking running!", you kept telling yourself in your head.

Armin is part of the rebellion, but you didn't realise that as you were running from his comrades in the woods. They wouldn't hurt you, they're not the government, but you were panicking too much to realise that right now.