The elemental rivals is a Pokémon Arc, set in the current main timeline of the Pokémon universe. The story follows a group of five young Pokémon trainers who each set out on their own journey, with their own goals.
The protagonists of this arc are Amber, Blaze, Cecil, Fuchsia and Sarah, who grew up together in the Johto region. After they attended the Pokémon Academy, they each went their separate ways, ending up in their respective regions throughout the Pokémon world.
Today, they all chase their own journey and yearn to challenge each other whenever they cross paths.