In his first appearance, he, along with Peanut, are looking for Tree Mountain which, at its peak, houses a magical tree that gives strength to any being that takes a bite of it. Charmander wants to become stronger, while Peanut wants to cure his sickliness.
Personality and characteristics
Charmander is tough and aggressive, in contrast to Peanut's shyness and sickliness. His Fire-type attacks are shown to be quite strong, and he is one of the few Pokémon in Magical Pokémon Journey that show an active interest in fighting and getting stronger.
For more information on this Pokémon's species, see Charmander.