Pokémon Rebirth: My Knowledge is My Ultimate System

Yunfan's mundane, dead-end life was abruptly terminated by a speeding truck. He woke as a crying infant in a familiar yet fantastical world: Sinnoh, teeming with Pokémon. His second chance, but with a crucial catch – no cheat system, no magical powers, just the daunting reality of starting over. Or so he thought. While others prayed for systems, Yunfan's mind was his ultimate cheat. Decades of future Pokémon knowledge, hidden abilities, perfect counters, and overlooked evolutions were his to command. He was the system. Ten years later, with his childhood friend Dawn, he's ready to turn overlooked Pokémon into unstoppable forces. His first partner? A proud, defiant Treecko, brimming with untapped potential. But the path to becoming Sinnoh's greatest trainer is fraught with formidable Gym Leaders, cunning rivals, and the shadows of legendary Pokémon. Can Hanyu Yun, armed only with foresight and determination, truly ascend to the pinnacle and forge a legacy that reshapes the entire Pokémon world?