Misty

Misty (Japanese: カスミ Kasumi), as seen in the Pokémon anime, is an aspiring Water Pokémon Master and a former traveling partner of Ash. Misty is the youngest of four sisters who reside in the Cerulean Gym, and is somewhat of a tomboy. She is the Gym Leader of the Cerulean Gym, handing out the Cascade Badge to Trainers who defeat her. She specializes in Water-type Pokémon and is well-known as being friends with Ash Ketchum and Brock.