Lillie Aether is running. Running from the Aether Foundation, from her past, from her mother. Elio "Sun" Ray is moving to Alola, after years of hearing his mother talk about how amazing Alolan pokémon are. He can't wait to get his first pokémon and travel the region. Their stories, while having no connection at first, will quickly and rapidly become entangled with each other.

Sun doesn't shine anymore, Hau barely smiles, and whatever hope she and Gladion found is slipping away.