Ash Ketchum's Older Brother || Pokémon x Tall!Male!Reader

Y/N Ketchum was the older brother of Ash Ketchum. He was older than Ash by 8 years, making him 18 while Ash was 10. For personal reasons, Y/N didn't go on a Pokémon Journey at 10 like his brother does, instead he heads out at age 18. On his journey, Y/N meets a lot of different Friends, Rivals, and Enemies.