Pokémon Origins is a special anime that premiered in fall 2013, produced by Production I.G.

About the production: the story comes from a video game, there are 4 episodes of about 22 minutes and its current status is "finished".

Its main genres are action, adventure and fantasy, with themes such as Kids, Animals, Travel and Proxy Battle.

On AniList, Pokémon Origins has an average score of 75%, a very good score, and appears on 54,683 users' lists.

One day, Red, a boy filled with dreams of going on a Pokémon journey, is called to Professor Okido's lab. There, he and his rival Green are given a Pokédex in order to collect data on all of the Pokémon in the region. As Red works his way to become champion with his Charmander, he meets many people on his journey, including Old Man Fuji, a man who runs the home for abandoned Pokémon, and Reina, a girl who works there. As danger in Red's journey begins to peak, he and his partner Pokémon experience a transformation like never before... (Source: Anime News Network)

Official synopsis from AniList.