The homeworld of the Giants of Light, the Ultras, located in the M78 Nebula. It is depicted as a fragmented planet mostly composed of a clear green crystal material, which reflects the light and heat of the Plasma Spark, an artifical sun whose rays turned the people of the land into the Giants; an appearance codified from Dai-Kaijuu Battle Ultra Ginga Densetsu The Movie onward.
Notable locations include the Inter Galactic Defense Force Headquarters, where the Ultra members of the IGDF are given missions and dispatched, the Ultra Colosseum where Ultras train in combat, the Ultra Space Port which has a barrier protecting non-Ultra visitors from the Plasma Spark's rays, and Plasma Spark Tower, where the artificial sun is kept.
