It's about 500 BC, and the first airplane was built and took off, but it 'malfunctioned' and the whole world exploded. It only avoided this unknown part of the world, but now the laws of physics aren't bounded to gravity anymore. So they're falling until an unbounded platform catches them. And then an earthquake occurs and separates them on seven islands. So each island has a leader. Each week an Island gets supplies. The leaders have powers by the way, and they are called deities. Each island is a clan, but you can also call it a tribe. Each of the clan's names are based on the deities' powers. Each month they (everyone in the land) get one island, and each year the get a genie, called a granter, to grant their wishes. So now that's the concept, pretty much.