Eclipse (Pokémon Ultra Sun)

Eclipse Rainwell {日没 日食 in Japanese} is a young, 11 year old girl from Alola.

She appears as the Main Protagonist {In My Game} of Ultra Sun. Her role in the anime is one of the main characters, and to serve as one of Ash's many friends and a close rival.

As her name suggests, both Game and Anime-wise; she has a strong connection to Necrozma

🌣 Pokémon Ultra Sun 🌣
{The game is more canon to her role in the world than the anime}

In the games, Eclipse is introduced the same as any other main protagonist in the game. She's recently moved to Alola with her mother and their Meowth from Kanto.

She is given the chance with Hau to get her first Pokemon, and is taught by Professor Kukui how to capture Pokemon.

Later on, she jumps in the way of a flock of angry Spearow to rescue Nebby, the Cosmog owned by Lillie. When the bridge collapses, Tapu Koko comes to her rescue. It seems Tapu Koko has taken interest in Eclipse.

As she begins her island trials, she captures many Pokemon along the way! Rockruff, Pikipek, and many more! Her personal favorite capture has to go to Rockruff though.

As time goes on Eclipse begins to have nightmares of a Pokemon, a Pokemon we know as Necrozma. Sensing it's pain, she continues her journey and meets up to face Lusamine. Lusamine telling her that Necrozma must be defeated, goes against Eclipse in battle and wins.

During the journey, they find the Sun and Moon flute so Nebby can evolve into Sogaleo, but the reunion is cut short when Necrozma attacks. Putting the world's fate in her hands, she rushes to go stop Necrozma, ultimately winning.

Going to challenge the Alola League, she is reunited with Necrozma, after a battle, she captures it and tells it that she forgives it.

Eclipse defeats Hau in a battle for the Champion's title and thus is crowned Champion.

There's more to her story, but these are the main parts. She has captured many legendaries, a couple shines, and has taken on Rainbow Rocket, and won.

Anime
{Will be updated at further notice.}