Complex sentence: After their marriage, Buntokapi reveals himself to be a strong military leader and much smarter than others have given him credit for, but also proves to be both an abusive husband and a somewhat inept ruling lord.
Split into simpler sentences: After their marriage, Buntokapi reveals himself to be much smarter than others have given him credit for. Buntokapi soon proves to be both an abusive husband and an inept ruling lord.