Erika (Quartz)

Erika  serves as the Gym Leader at the Celadon City Gym. She specializes in using Grass-type Pokémon, and holds the Rainbow Badge for the trainers that manage to defeat her. She dresses in elegant furisode kimonos and seems to represent traditional Japanese beauty.

Kanto
Fer arrives to Erika's Gym in order to achieve her fourth Gym Badge, Erika's Gym is filled with grass, flowers and other plants, and additionally, all of the Gym members are female. Fer then uses her Bulbasaur to cut the grass in order to reach Erika in the Gym's center.

Erika then congrates Fer on reaching her and challenges her in a battle for the Rainbow Badge, Erika first sends out Victreebel, but Fer sends out Charmander, who wins thanks to the Type-Advantage, then Erika sends out Tangela, and is surprised to see Fer has one too, both Tangela fight with all of their power, but at the end Fer orders him to use Vine Whip against a weakened Tangela, wining.

Lastly Erika sends out Vileplume, who is defeated by Pikachu. Upon defeating her, Erika rewards Fer with the Rainbow Badge along with TM21 (Mega Drain).

Later Red arrived to Celadon City in order to fight Erika, Erika battled against Red and his Charmeleon, using her Vileplume. Charmeleon was easily able to defeat Vileplume and Erika gave Red the Rainbow Badge.