The original companion refers to the first Pokémon that a new trainer gets when he embarks on a journey.
Except for "Pikachu" and "let's go! Pikachu/let's go! Eevee", the initial partners all choose one from three specific Pokémon: grass, fire, and water. The third generation introduced three moves: Crazy Plant, Explosive Flame, and Water Cannon. Only the final evolution of the original partner with corresponding attributes can be taught. The common qualities of the initial companion of all three attributes are Lush, Fire, or Torrent. The fifth generation introduced combined moves. Before the seventh generation, only the original partners with corresponding attributes could be taught. The unofficial common names for
's original partners are yusanjia.
The official names for "first partners" are not consistent. Some introductions are mostly called by various phrases, such as "the three Pokémon who became the first companions", "the first three companions", and "the first chosen ones" in home. Pokémon", "First Adventure Partner", "First Chosen Partner", "First 3", "Partner" and "Partner Pokémon", etc.
As for the "original partner", this title is a category in "Pokémon Home" and has also appeared many times in the information on the Chinese official website.
In "let's go! Pikachu/let's go! Eevee", the initial Pikachu and the initial Eevee are collectively called "Partner Pokémon".