Iaifen Sys, roughly Dragontail (literally "Sunbird's Feather"), is the largest city of the Dragonfoot, sitting on its deepest inlet. Its previous rulers had been the House of Ja, which went extinct after its final ruler, Prince Jonos Ja, tried to stage a mutiny among the Horser Armies besieging the redstone walls of the city. He was unaware that the Horser Armies were secretly composed of Thunderstruckers, who were quickly able to discover his true identity. Later, after the end of the 1st Great War, Iaifen Sys and the rest of Lafafarro came under the direct supervision of Sayerthenn.