Pokémon Expedition (Japanese: ポケットモンスター探検 Pocket Monsters Tanken) is a fan fiction series authored by Steven-Kun. It follows the adventures of a Pokémon Trainer named Akira who loses his memory and finds his way to Nuvema Town in the Unova region. He is then given a starter Pokémon by Professor Juniper and sent on a journey to uncover his past. His adventures eventually lead him to other regions.
The arcs of the Pokémon Expedition series cover the five generations of the Pokémon games so far. The arcs are typically named for the region that they take place in. Unlike the Adventures series, the Expedition series centers on its own original storyline and characters and not characters from the games. The main protagonist of the series remains the same throughout every arc in order to maintain character development.
Main Article: Unova arc (Expedition)
The first story arc of the Pokémon Expedition series begins in the Unova region and begins the adventures of Akira. Along the way he encounters many rivals and a villainous organization known as Gundan who appear to be targeting him for some strange region. Throughout his adventures Akira defeats Team Plasma and eventually challenges the Unova League. The secrets to his past only begin to unfold in this arc.