The Nui Kingdom is the governing body of Archibast, ruled by Queen Mida Nui. Despite being the official government of Archibast, the kingdom's actual authority is significantly constrained by the economic influence of the High Rollers, as seen during the tournament when Glass demonstrated control over major facilities like the Sakuba Manufactory.
The kingdom is led by Queen Mida Nui, who resides in the palace on Makai, the top plate of Archibast. During the tournament, it was revealed that King Noa, who claimed to have returned from Hollow Deep University, was actually the dragon Vida in disguise. The incident exposed vulnerabilities in palace security and the kingdom's reliance on outside powers for protection.
The kingdom's defense rests on the elite Wind Druids, the pinnacle of Archibast’s martial tradition. The order prizes skill above birth, as seen in Master Kimo Baja, who is respected more for his title than for his noble ties—despite his granddaughter Nalani being a knight of high rank. This merit-first ethos held true when a dragon named Hunts rose to lead the Wind Druids after Master Terada fell to Vida’s corruption.