(Reborn as Ash, I begin a whole new adventure. He won't know everything from the start, and will grow gradually. Multiple heroines. Gou Hao must die: he'll fall off a cliff when he first appears. He won't be mentioned early on, so don't worry. No System, no levels. There is no four-move limit on learned skills, but Pokemon battles are limited to four moves. The number of Pokemon he catches will grow, but he won't catch them carelessly. He'll train every Pokemon and won't casually catch Legendary Pokemon. In the end, he catches Suicune, Regieleki, Regidrago, Zamazenta, and Eternatus. That damn Xiao Hao catches so many Legendary Pokemon but doesn't even train them. He doesn't help Ash achieve his dream, so he's completely useless and deserves to die.)
A brand-new Ash sets off on a journey to become a Pokémon Master.
What will Ash gain on this whole new journey? What adventures will the Pokemon encounter? What kinds of characters will they meet?
This is a regret-free journey filled with the colors of youth and the fiery spirit of a young boy. Watch Ash dominate the various leagues and become a Pokémon Master.
(The protagonist has forgotten the plot. I think it's more interesting to write it this way. The female supporting character in the Unova Region is still Iris.)
One thing I don't understand is that the protagonist has obviously watched Pokémon but doesn't know the plot. Why does he like to watch time travel stories? He just likes Prophet.