The games take place in Lyndbaum, a world similar to medieval Europe with the inclusion of modern factories and railroads. Lyndbaum is surrounded by four other worlds: Loreilal, the land from where mechanical creatures come; Silturn, the land of yokai; Sapureth, where angels and demons live; and Maetropa, from where half-humans, magical beasts, fairies and other mythical creatures hail. Source: Wikipedia, "Summon Night (series)", available under the CC-BY-SA License.