May is a traveling companion of Ash Ketchum and the older sister of Max. She comes from the Hoenn region and has a strong passion for Pokémon Contests, where she aims to become a Top Coordinator. In the events surrounding Cameron Palace and the Tree of Beginning, she joins Ash and Brock on their journey to rescue Pikachu after it is taken by Mew. May is cheerful, empathetic, and level-headed, often acting as a calming presence during tense situations. She cares deeply for her younger brother Max and frequently looks out for him. Her motivation throughout the story is to support Ash in his mission and to ensure the safety of all the Pokémon involved. She shows great trust in her own Pokémon, releasing Munchlax and Combusken when they are threatened by the Tree's defense system. May does not have a personal arc in this film, but her role is essential as part of the group that helps uncover the truth about Sir Aaron and Lucario. She demonstrates resourcefulness and bravery, especially when navigating the dangers of the Tree of Beginning. Her notable abilities include her knowledge of Pokémon care and her experience as a coordinator, which helps her remain calm under pressure. Her key relationships include her brother Max, whom she guides, and her friendship with Ash and Brock, whom she accompanies loyally.