Mira is one of five Trainers who can join with the main character during an event in Pokémon Diamond, Pearl, and Platinum. Later, she can join the player in competition at Sinnoh's Battle Tower. She first appears in the Wayward Cave. She got lost inside looking for Pokémon and needs to be escorted out. Mira says she prefers using support moves like Flash. Mira seems to admire the player, saying that she wants to be like the player when she grows up. She also tends to refer to herself in the third person; using her own name instead of saying "I". This is typical in Japanese, where it is used to indicate femininity.
Mira appeared in Sandshrew's Locker! as a character of the day. Wanting to use Dawn's WaterPokémon for her own purposes, she offers to teleport everyone to Hearthome using her Abra. However, she teleports them to a flooded city and tells them her grandmother's pendant was lost in the newly-flooded lake. Everyone goes diving to recover the pendant, but they are repelled by a wild Gyarados.
After another confession, Mira explains that actually the Poké Ball containing a Sandshrew she and her friends used to play with was left at the school when the town was flooded because of the dam.
Ash had Pikachu defeat the wild Gyarados, and Mira was reunited with her Sandshrew. Filled with gratitude, she had her Abra teleport everyone to Hearthome City.
Pokémon
This listing is of Mira's known Pokémon in the anime: