From Bulbapedia, the community-driven Pokémon encyclopedia.
Mollie (Japanese: ミカ Mika) is a character of the day in the Pokémon anime who appeared in What I Did for Love!.
Mollie was a first-time Coordinator appearing in her first Pokémon Contest. She seemed to have trouble finding out where to register until Brock told her it was at the front desk.
She made her appeal with her Raticate by using Hyper Fang on a stick of wood. She made it to the second round and used Absol, but the two lost to Brock and his Marshtomp.
In the end Yuma decided to take Mollie under her wing and show her how to become a better Pokémon Coordinator, instead of Brock.