Pokemon: Using Mega Evolution in Galar

No levels, no System (probably?), pseudo-invincible, one heroine, a slice-of-life Pokemon fanfic. No grimdark content. What funny things might happen when an ordinary Pokemon fan suddenly finds himself in the Pokemon world?

And now, the synopsis:

Host: Hello, everyone, and welcome to today's special program! We're honored to have with us Galar Champion and Fairy-type master Shiyu!

Shiyu: What the heck?! Fairy-type master? You've got it wrong! See this Ogerpon? It's Grass-type!

Host: Then why does this Grass-type Ogerpon know Zen Headbutt, a Psychic-type move? Are you actually a Psychic-type Elite Four member?

Shiyu: The mask looks so cool when I smash things with it! Anyway, my Latias is here to pick me up. See you!

Audience: That's definitive proof they're a Psychic-type Elite Four member!

Shiyu: You might not believe it, but this all started when I picked up an empty Poke Ball…