you poor stupid bastard, based on your looks you might just be a reincarnator too, but you're up against 2 reincarnators one of whom has ultra tier potential across the board and the other possesses immortality and several hundred years worth of training in sword skills under the literal best fighter/sage in the world...who is liable to get personally involved if you hurt his disciple too much...you REALLY ought to just give up and solidify your place as new ruler by actually, ya know, RULING YOUR PEOPLE WELL instead of hunting the last of the old bloodline, after all, old blood to rally around or not, if you suck as king then someone's gonna do to you what you did to her dad