Vuforia Follow Character In World

What I want to do is that when the Image Target is found by vuforia, a certain part of the map will appear, for example the width of the ImageTarget.

But when the character moves, I'm trying to keep the Image target and the character in the same place, only the big invisible world slides underneath.

I mean, when the phone is always looking at the same place, when we move with the joystick, I want to move the character around the world as if it were moving around the world, what kind of way should I follow for this?

If u can't understand just think about like side scrolling to AR world scrolling :D