An Alien In Alola

The story is about a young person who was once a hero and a human in his dimension, but was stabbed to death and his soul is now in the Omnitrix and his home dimension is gone. Now, he ended up in another dimension where these weird creatures called Pokemon that roam around the world and in a place called the Alola Region. Let's see how he can adapt to this world he's in, and the many adventures he goes and trials he faces.

(This takes place in Pokemon the series Sun & Moon Ultra Legends. Also, I don't owned Pokemon and Ben 10.)