Melemele Island serves as the main setting for the Sun and Moon series, due to being the location of the Pokémon School. It is first introduced in Alola to New Adventure!, where Ash and his mother arrive to deliver a normal Vulpix egg to principal Samson Oak. While there, Ash finds out about the Pokémon School, and decides to stay behind and attend it, while learning that the guardian deity of the island, Tapu Koko, has taken a special interest in him.
Melemele Island's real-life counterpart is the Hawaiian island of Oahu. Golden yellow is the island's official color and the ʻIlima is its official flower.