Blue debuts in the first round of the manga, A Glimpse of the Glow where he and his rival Red see a Mew in a Pallet Town forest. His first Pokémon was a Scyther—he is shown with one when he was a child. When he was young, he trained in Johto under Chuck, the Gym Leader of Cianwood City. Blue's special skill, as described by Professor Oak, is Pokémon training—that is, leveling them up and making them strong, and as such is referred to as the "Trainer" (Japanese: 育てる者 Trainer).