Ominous dark clouds are spreading in the sky above the Alola region, the setting of Pokémon Ultra Sun and Pokémon Ultra Moon. New buildings and landscapes appear that were not previously seen in Pokémon Sun and Pokémon Moon. In Pokémon Ultra Sun and Pokémon Ultra Moon, a story unfolds on a grand scale, with the Legendary Pokémon Solgaleo, Lunala and Necrozma at its center. Secrets about Necrozma and the Alola region – undisclosed in the previous games – will come to light.
Source: Pokemon.com
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