Guardian deities/History

According to the legends of Alola, the Guardian deities serve as protectors of the island each resides in. At one point, they participated in war against each other. Eventually, due to the destruction the war brought, they stopped being involved in human affairs. They occasionally fight to see who is the strongest, which lead to the creation of the Battle Royal format. Whenever an Ultra Beast appears in Alola, the deities will fiercely fight against it in order to protect their islands from invaders.

According to a book called "The Light of Alola" in the Malie Library, a / once came from an Ultra Wormhole and fought against the guardian deities, defeating them easily. As a reward, Tapunium Z was bestowed upon them. The / then created many for the Guardian deities to protect and watch over until they fully evolved and returned to Ultra Space.

According to secret notes found in the Malie Library, a "" once invaded Alola, stealing all of its light and shrouding the region in darkness. The guardian deities fought against it to regain the stolen light. Together with the assistance of a youth and the power of Z-Crystals, the guardians were able to banish the invader, restoring Alola's light and freeing Solgaleo/Lunala.