You know, it's being presented like there's possible fuckery with last minute wills and all by the concubines... but it's really not THAT unexpected that the Zhao king would appoint his psycho son rather than the pretty boy, who's views fell right in line with the people the Zhao king had imprisoned. I mean, it would even be easy to explain; 'yeah he did it right after you argued with him. Sorry not sorry.' That being said, I can't wait to watch the state of Zhao crumble to the ground.