Ralts

Ralts is a humanoid Pokémon with a white body. It has thin arms and legs that widen toward the feet. There is a wispy extension trailing off the back of its feet, creating the overall impression of a nightgown or oversized dress. Most of its face is covered by green hair that resembles a bowl cut, but a pair of pinkish-red eyes is sometimes visible. There are two flat, red horns on top of its head: a large one toward the front and a smaller one at the back.

Ralts uses the horns to read people and Pokémon's emotions. Warm feelings cause its body to warm as well, but it hides if it senses hostility. If its Trainer is in a cheerful mood, Ralts also becomes cheerful and joyous. 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. Ralts prefers to hang out with people of cheerful nature more than those with gloomy natures. Regardless, Ralts will show no discrimination to anyone based on age or gender. As mentioned in Pokémon Sleep, when you see a Ralts smiling in its sleep, that means something good has happened during that day.

Evolution
Ralts evolves into , which evolves into either or, if male, Gallade.

(Source: Bulbapedia)