Chloe's Eevee

Personality: Eevee likes to mimic others around her, especially her evolved forms. She also has a big heart and is willing to help anyone in trouble. Eevee is currently unable to evolve, despite being given opportunities to do so. The reason for this is implied to be related to Chloe's uncertainty about what she wants do to in the future.
-Biography: Eevee was at a lab that researched her species and her evolved forms. While with her evolved forms, Eevee tried to mimic a Sylveon and Vaporeon in an attempt to evolve herself, but failed. She then tried to evolve into Flareon and Jolteon, but she couldn't. However, later that day, Eevee saw a Yamper outside and left the lab to follow him. Although he was hostile towards her at first, Eevee was able to get Yamper to trust her as they played together and formed a friendship. However, when the researchers with a net arrived outside the lab, Eevee ran away from them with Yamper, who mistook them for hunters that wanted to harm her. After getting away, Eevee and Yamper arrived at the school that Chloe and Goh attended. Eevee hid in the garden when Yamper went to get Chloe for help. After Yamper brought his mistress over, Eevee came out of hiding and became fascinated by Chloe. Eevee was in Chloe's arms as they escaped from the researchers with Goh's help. After going to the playground where the Pokémon were playing, Eevee, Yamper, Chloe and Goh saw several Pokémon trapped in a net, including Goh's Cinderace and Sobble, as they had been captured by Team Rocket. Witnessing Yamper's determination to help save the Pokémon, Eevee was inspired to help and worked together with him to send Team Rocket's Pelipper blasting off, while Ash and Pikachu saved the captured Pokémon and sent the trio blasting off.