Azurill is the child of Tracey's Marill, though it is unknown which Pokémon was the other parent. Misty mentioned that Tracey gave it to her when it was just an Egg.
Later, Azurill accompanied Misty while she was on her way back to the Cerulean Gym, with the group accompanying them on their way to the Battle Factory. In A Real Cleffa-Hanger, Team Rocket attacked the group as they picnicked at the foot of Mt. Moon. Azurill, notably, befriended a wildCleffa who had become separated from its family. The group eventually foiled another Team Rocket scheme and helped the Cleffa reunite with its family. Afterwards, Misty and Azurill left Ash and the others and returned to the Cerulean Gym.
Azurill reappeared in JN138. During the episode, it reunited with Ash and watched as he and its Trainer battled over a wild Clauncher.
Personality and characteristics
Azurill playing with a wild CleffaAzurill ready to battle alongside its parent, Marill
Despite being small, Azurill is already powerful, assisting in the effort to fend off Team Rocket in The Right Place and the Right Mime. Much like Togepi before it, Azurill is usually held in Misty's arms.
As a baby Pokémon, Azurill is very playful, as seen when it was playing with a wildCleffa, using its ball-like tail to entertain the Star Shape Pokémon. It is also very sociable, helpful, and friendly towards other Pokémon, as seen when it healed Pikachu from his injuries by using Refresh.
