Cleffy

クレッフィ

Klefki is a small, grayish-white Pokémon that looks like a key ring with four keys. It has a spherical head featuring a small, pink oval on its forehead. Two black circles and a keyhole serve as its eyes and mouth, respectively. Below its head is a pink, teardrop-shaped body with a white, teardrop-shaped marking in the center. A horn extending from the top of its head resembles an old-fashioned key with two wide, blunt teeth. Thin loops extend from either side of the key, surrounding Klefki. Various keys collected by this Pokémon hang from these loops. As depicted in the TCG, the loop is highly mobile and can split at both the top and bottom, enabling Klefki to gather new keys and even express its feelings. Klefki is very tiny, tying with Alolan Diglett and Meltan as the shortest Steel-type Pokémon.
Klefki are known to be even-tempered Pokémon. In the past, Klefki inhabited mines, but when the minerals it fed on became scarce, it moved into human settlements. It now feeds on metal ions by inserting its key-like horn into gaps in metal. It likes to collect keys, particularly master keys, and will sneak into people's homes to steal them. It collects keys to feed on their metal ions, as well as to threaten predators by rattling its collection at them. It is said that Klefki's key-like appearance is the result of an adaptation to suit its habit of collecting keys. Although it feeds on keys, it will never release a key it likes, holding onto it for decades, so people will give it important keys as a way to prevent theft. However, on rare occasions, it will discard a key without second thought. In the past, nobles kept Klefki for generations, taking great care of them while entrusting them with important vault keys.