This is a world where only Pokemon exists, a world plagued by natural disasters and mysterious labyrinths called Mystery Dungeons that are filled with traps, treasures, and hostile wild Pokemon. Due to the many dangers, groups of Pokémon would often come together to form teams with the goals of exploring the world and helping those in need.

In a humble town set within a forested grassland, there stood a Guild created with the purpose of recruiting and training those who sought to form their own Rescue Teams, lead by an Ampharos by the name of Apollo.