From Bulbapedia, the community-driven Pokémon encyclopedia.
Anita (Japanese: アザミ Azami) is a character of the day who appeared in Gonna Rule the School!.
She initially found her time at the Pokémon Trainers' School boring, namely because she was forced to attend because of her parents. However, after seeing Max and Tommy help save some stolen Pokémon from Team Rocket, her views about Pokémon changed.
Anita disliked Tommy because he prided himself on being the star student and often bullied the other children. Anita would often leap to her fellow students defense, as she did for Kenny during the school trip. Her opinions of Tommy quickly changed after she joned forces with him to take down Team Rocket.