Misty and her Staryu saved Mahri when she got caught in a whirlpool with her Seel. After that, she began idolizing Misty and wanted her to fall in love with Rudy.
Mahri ended up getting disappointed by Misty during Ash's battle with Rudy. Instead of supporting her brother, Misty cheered for Ash. Despite this, and Ash's victory, Mahri still told Misty that if she changed her mind, she would still be welcomed on Trovita Island.
Pokémon
This section is missing information on this character's Japanese voice actor. Please feel free to edit this section to add this information.
Mahri appeared in The Electric Tale of Pikachu as she did in the animated series. However, she was shown to have a Dewgong instead of a Seel. When she and Dewgong were caught in a whirlpool, Ash was able to save them with Fearow's help. Despite Ash's heroic actions, Mahri looked up to Misty instead. She was then revealed to be the younger sister of Rudy, the leader of the Orange Islands. After Ash defeated Rudy, Mahri was sad to see Misty leave. Rudy cheers her up by crossdressing as a girl.