Delano didn't originally live in the Rinto region, being born in an unspecified location far away. He speaks in a mixture of Spanish and broken English, the only other character he can speak to normally being Professor Mangrove, who also happens to hail from the same location he does. When he first arrived in Rinto, he decided to live in Pollug Town because of its tropical climate, which reminded him of his home. Having just completed his studies at university, he decided to help Professor Mangrove with her research on the wild Pokémon in the area. He managed to become a Gym Leader after Professor Mangrove nominated him for the position to the Elite Council.