The Pinnacle of Power: from Being Dispatched to the Grassroots to Being in Charge

Having no power or influence, he was disliked by his mother-in-law, who lives in a high-ranking official family, and was forced to break up. Forget about breaking up, the mother-in-law killed the male protagonist in order to protect her daughter's face, forced him to resign and drove him away from the place. Is there any hope for such a life? From being despised to taking charge, what has the male protagonist experienced?