Isamu Akai

Isamu is a young Trainer from Pallet Town who received a Pokdex from Professor Oak and was sent on a quest to find out more about Pokmon. Isamu encounters a violent male Clefairy on his way to Professor Oaks lab and together they defeat a giant Nidoran by accident. When Clefairy follows Isamu to the laboratory Isamu chooses to travel with the Clefairy because he finds his antics amusing. Unlike his rival Isamu doesnt catch a lot of Pokmon. He has two later three favorites which he keeps outside their Pok Balls. He has caught several others including Articuno but never uses them in battle. He continues his journey in Pokmon RubySapphire the sequel to Pokmon Pocket Monsters that takes place in Hoenn and in Pocket Monsters DP the second sequel of Pokmon Pocket Monsters that takes place in Sinnoh. His rival is Kai Midorikawa. Source: bulbapedia.bulbagarden.net