Manga The Ride-On King

Alexander Purchinov is president for life of the country of Pursia, a country ruled by violence and the influence of its government. Alexander always desires to be dominant, and ride things, whether literally or figuratively. Now that he has already ridden his country, his next target is a fantasy world that has orcs, wyverns, and centaurs.Golosseum Vol. 5 includes the original pilot to this manga.