An extra-dimensional world that belongs to no universe or world. It is the central base for the gods and the place where Celestials and Angels reside. The name is simply the "Celestial Realm." The inhabitants are primarily three races: Celestials, Angels, and Gods. They are called the Amezoku (Heavenly Tribes). Races other than the Heavenly Tribes (such as humans) are basically unable to enter. However, those from certain worlds like the Demon Realm can send a visitation request. If approved by a god, they may enter the Celestial Realm. However, the entry screening for outsiders is extremely strict. Celestials live in the residential district called "Celestial Town," Angels serve the gods in their manors and castles, and the Gods work in the cities called "Divine Domains." Technology in the Celestial Realm is highly advanced, featuring high-tech rituals and science such as holographic aerial projections and displays. However, many of the buildings are Western-style palaces and castles. Because the altitude of the Celestial Realm is very high, the oxygen concentration is thin. However, a pure air that seems to purify the body flows through it. For beings like demons living in the Demon Realm, this holy energy (Seiki) acts as a poison. In the largest castle in the Celestial Realm, located at the center of the Divine Domain, lives the omniscient and omnipotent Supreme God known as the "Divine King." The Divine King is the strongest and highest-ranking among the gods. The next in rank is the "Supreme Management God," also known as the "World Overseer" or "Lord of the World." They are the leaders and young heads of the gods, managing the countless universes and worlds that outnumber the stars. Currently, there are two—a Chief and a Deputy—both of whom are among the strongest in history. Besides them, there are countless other gods. Angels also vary, ranging from Archangels to standard Angels and Lesser Angels. Naturally, there is a hierarchy. Celestials are like the general citizens of the Celestial Realm. Celestial Town is almost no different from a town in the lower world. However, there is a guard organization called the "Knights of the Round Table" led by Celestials, which only chosen individuals among them can join to protect the realm. Currently, the order consists of about twenty men and women in total, including a Commander, a Vice-Commander, and the Three Towers.