Pokémon The Series: Sun & Moon

A Plethora of Pikachu! (21x47)

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Satoshi, Pikachu, Kaki and Hoshi visit Pikachu Valley, which is looked after by Pikaria, who is so devoted to Pikachu that she even dresses like (and tries to get everybody else to do likewise) and tries to talk like Pikachu (even adding "Pika" to the end of every sentence and everybody's name). The Valley Pikachu (all of whom belong to Pikaria) are wary of Satoshi's Pikachu because he comes from Kanto, but after female Pikachu Kurin proves friendly and dominant male Pikachu Banchō loses to Satoshi's Pikachu in a battle, everything seems to be going well...until Rocket-Dan tries to capture all of the Valley Pikachu. But it turns out that Pikaria has a plan (as well as a Z-ring, a Pikachu Z-crystal and the Z-move Certain-kill Pikachoot) up her sleeve!