There was this manga about a guy who rode a bike around the undercity of this world, and this other guy who came down from the uppercity to see how th undercity people lived even though he was like the main royal figure. Had something to do with socerer's and I think mpreg😕? Oh and the cousin of the main royal guy was LIKE OBSESSED WITH THE UKE I just cannot remember the name for the life of me.