Role in the series
Normally Meloetta is an extremely shy Pokémon and will hide from strangers because of its tragic past. However it will quickly warm up to someone new and is willing to help them if needed. Though a genderless species in the games, Meloetta displays many feminine traits. It seems to like Ash most of all, at times exhibiting signs of a crush on him, while Oshawott and Piplup like it. While it's timid in its Aria Form, it becomes a strong battler after transforming into its Pirouette Form and can take on opponents much larger than it is.
Meloetta can use its voice to calm down the Pokémon around it if they happen to be irritated, which has a similar effect to Oración. It can turn invisible but it can be seen in this state if proper equipment is used, such as the kind Team Rocket has. It also possesses a song that will unseal the Abyssal Ruins, which it restrained itself from singing. Following the interaction with Ash, it let its guard down and eventually sang the whole song on a seashore which was recorded by Team Rocket. It also has the ability to channel the energy required to control the Forces of Nature while they are in Therian Form. However, this will cause Meloetta a lot of pain.
Meloetta's long-lost friend. Lucario knew Meloetta because she follows him every time he goes. He and Meloetta are close and had a brotherly-and-sisterly relationship, Lucario understands of Meloetta hiding from others because of her tragic past
Sonja Farrington Edit
Meloetta first met Sonja and her friends in Sonja's Adventures of Kirby Right Back At Ya-Episode 44. Meloetta and Sonja had a sisterly relationship because they're good at singing. At the end, Sonja decided to let Meloetta join her and the others
Alister Azimuth Edit
Meloetta is befuddled and always wondering why Sonja and Alister are always together. But Alister told her that he and Sonja are in love with each other, Meloetta is happy yet confused to hear it from Alister
Meloetta is very frightened by Cleo's wrathful temper, but Cleo immediately apologized because she was just angry of Alister thinking that Cleo's a Shadowling. Meloetta acts like a mother-figure to Cleo because she knows how Cleo felt after being mistaken for a Shadowling