@Mystic_Moonlight_666
Uh, a book idea that could be used, is people unlock the ability to see other alternative realities. In other words, you can see where you would end up if you choose option B over options A. This means if you choose the wrong one, you can jump into that other reality, and take the place of your other self. The catch is you have to kill the alternative version of yourself.
That's all I've thought of for the plot so far, you will most likely need consequences that come from these actions. And wethier it costs money to do so, etc.
Just thought it could be a cool concept you can make your own.