Mona, along with Moira and Cher, is considered one of the most beautiful ladies of Unova region, along with their Pokémon. Despite their usual performances on theatres, Cher, Mona and Moira consider anyone else unworthy of their Pokémon's beautiful presence. Iris, who experienced their snobbish attitude, dressed herself, Ash and Cilan as three ladies to visit their workplace. Cher, Mona and Moira have presented their Pokémon through a test - either to walk gracefully or fall in the mud. Iris still couldn't take their attitude and challenged the ladies to battles. Mona battled with her Lilligant against Cilanoir, who used her Pansage. Mona had Lilligant use Leech Seed, but Pansage dug, only to discover there is mud under the battlefield. A moment later, Lilligant knocked Cilanoir and Pansage into the mud using Energy Ball, making Mona the victor.
Mona sent Lilligant to battle Cilanoir's Pansage and won the battle.