Pokémon Try Adventure

Mr. Crow, a mysterious man, gathers 3 boys who love Pokémon. Katsuya is the main character, who wants to be stronger. He travels along Toki, who is experienced at traveling, and Soto, a Pokémaniac who wants to catch'em all.
These characters travel alongside the Pokémon World resolving mysteries (almost of them regarding legendary Pokémon) and helping people.