If Gary Oak is headed for the Sinnoh region, then Ash Ketchum won't be far behind! Ready to take on the Sinnoh League, Ash brings along Pikachu and meets. If Gary Oak is headed to the Sinnoh region, Ash Ketchum won't be far behind! Ready to take on a new challenge, Ash and Pikachu meet up with Brock in Sinnoh. Looking for information on the anime Pokemon Diamond & Pearl? Find out more with MyAnimeList, the world's most active online anime and manga community. Pokémon the Series: Diamond and Pearl (Japanese: ポケットモンスター ダイヤモンド＆パール Pocket Monsters Diamond & Pearl), referred to by fans as the. This is a list of episodes in Pokémon: Diamond and Pearl, aired in Japan as This series uses game music from Pokémon Yellow and Pokémon Gold and. Pokémon: Diamond and Pearl is the tenth season of the Pokémon anime, and the first season of the Diamond & Pearl series. It features 52 episodes of Ash.