Foresight has an amazing magical talent; the ability to peek slightly into the future. As far as he knows, he's the only one with such an ability in the whole world.
Well. He sincerely hopes he is. He's a bounty hunter, after all. And a clairvoyant trying to outsmart another clairvoyant... that probably has a lot of potential for spontaneously exploding heads.
This story could be considered to be set in the Equestrian Wasteland from Fallout: Equestria , because it was technically written for the setting... but in the end there isn't anything specific linking it to the FO:E lore. It's more of a western-style thing, really. I just needed a setting where bounty hunters and hitmen were a normal acceptable thing