Su Xin's overall plan had not been told to Huang Bingcheng, for what Su Xin wanted from the very beginning was to dethrone Ji Yanshow.
When the new emperor ascended to the throne, Su Xin chose Ji Yanshow for a simple reason, because he was an old acquaintance, and his capabilities were passable, coupled with the promises he had made to Su Xin himself, that's why Su Xin had chosen to support Ji Yanshow as emperor.
However, people's hearts are prone to change, Su Xin was adept at seeing through people's hearts, but he could not predict the changes of the heart, which, of course, not even Jianghu's most powerful divination Great Grandmaster could manage.
Therefore, Su Xin did not regret choosing the wrong person, what was done was done, regret was useless, if it was wrong, then simply replacing them would suffice.
This wasn't Su Xin's arrogance, but rather his confidence.
