Urban Summoning from Another World

Mu Xingyu of Earth and Eric, a good-for-nothing summoner from the continent of Izelas, have established a summoning portal between their worlds. Mu Xingyu of Earth: “Little Eric, hurry up! Bring me a catgirl from the Beastmen, an elf girl from the Elves, and, well, you can skip the Dwarves. Also, get me a female angel. Oh, and a dragon would make a great mount. Get me a hellhound from the Demons, too. I'll keep it as a pet...” Eric of Izelas: “Brother Mu, stop thinking about fighting and picking up girls all day. You should study more science. Those science mages need to get busy researching scientific magic. I want machine guns, cannons, tanks, and planes. Oh, and bring me an atomic bomb, too. I'll show them that forbidden magic is garbage...”