From Bulbapedia, the community-driven Pokémon encyclopedia.
Annie (Japanese: サチコ Sachiko) is one of the characters of the day that appeared in Wobbu-Palooza!.
Annie is a little girl who lives in Wobbuffet Village. Her Wobbuffet was attacked by the Wobbuffet Festival crashers, during the Wobbuffet Festival, and she was the first person of the village whose Wobbuffet was attacked.
She was seen crying beside her fainted Wobbuffet at the banks of a river when Ash, Misty, and Brock ran up to her. When asked what happened to her, Annie said that she was playing by the river with her Wobbuffet when the Wobbuffet Festival crashers suddenly came and hurt her Pokémon. Two other Wobbuffet then came and picked up her injured Wobbuffet.
Ash, Misty, and Brock, along with the residents, ran to the next place where the crashers attacked Wobbuffet, when another resident came and informed them about the crashers showing up in the center of the village, leaving Annie in the care of the other two Wobbuffet.