Ash Ketchum (Japanese: サトシ Satoshi) is the main protagonist of the Pokémon anime series. Pikachu is the only Pokémon he travels with to every region he goes to in his journey. Ash's ultimate goal - become a Pokemon Master, the greatest Pokemon Trainer ever. His mother is Delia Ketchum. His father has not yet been seen in the series. Ash Ketchum (Japanese: サトシ Satoshi) is the main character of the Pokémon anime. He is also the main character of various manga based on the anime, including The Electric Tale of Pikachu, Ash & Pikachu, and Pocket Monsters Diamond & Pearl. Ash helping Serena. When Ash Ketchum was a little boy, Ash went on a field trip. However, during the trip, it started to rain, and Ash got separated from his group. Ash was forced to take shelter under a hollow tree. However, he noticed a group of Pokémon who were also seeking shelter from the rain.