Neathia is the homeplanet of the Neathians located in an unknown galaxy (possibly in the same galaxy is Gundalia; Centaurus A). The Queen is currently Fabia Sheen. The Queen of Neathia was formerly Fabia's older sister, Serena Sheen but she is not anymore because she gave up the throne to become the Ambassador for Neathia and Gundalia. Also, there was a powerful object called the Sacred Orb and the "Element" within the city of Neathia. As shown by Linus, Neathians have an ability that allows them to look exactly like a human. their real forms have diamond-like eyes and blue skin. Most of the Neathians are weak brawlers, because they got wiped out by the Gundalians. It is also the home planet of several powerful bakugan whom ancestors come from Old Vestroia. It seems that most Neathian brawlers use Haos attributed Bakugan. Nearly all objects are chrome. Neathia and Gundalia were initially one planet.
The Sacred Shrine is the place where the Sacred Orb used to be held (now located in New Vestroia). The entrance was guarded by a menacing gargoyle to frighten off burglars (which was Dragonoid Colossus in a stone statute).