Ralts lived in the area around the Illusion Forest, which is extremely rare for the Pokémon. She was attacked by poachers prior to being found by Sean and was fearful of humans. When encountered, she fled into the safety of the Illusion Forrest and was once again found by Sean who proceeded to battle with her, in order to catch her and take her to a Pokémon Center. Following this she started to trust and admire her new trainer.
Ralts is a bipedal Pokémon with a white body. Its body and and legs resemble an oversized dress. Its green hair resembles an bowl cut, which covers most of its face. Its hair is split by two flat red, a large one toward the front and a smaller one at the back. A view from below shows that it has a pair of red eyes.
Ralts uses the horns on its head to read people and Pokémon's emotions. It is known to inhabit urban areas, but it does not normally show itself to humans. However, when it senses happy feelings, it will approach people. If its Trainer is in a cheerful mood, it also becomes cheerful and joyous. If it senses warm feelings, its body will slightly warm up. It takes cover if it senses hostility.
Kirlia is a white bipedal Pokémon that appears to be wearing a tutu. It has green hair that reaches down to its shoulders, and two red horns look like hairpins. These horns are used to amplify its psychokinetic power and distort the air around it. The distortion in the air causes scenery mirages. It can also use its horns to cause a rip in dimensions and see into the future. It has skinny green legs with pointed feet and thin, white arms that have two fingers. It grows beautiful when exposed to positive emotions from its Trainer. It likes to dance on sunny mornings.
Ralts' ability is Telepathy which allows her to communicate with Sean and others using her mind as well ass preventing damage during Double and Triple Battles when her allies use moves such as Earthquake. She retains this ability as Kirlia.