The Top Champion Comes From Paldea

A transmigrator with a super training System becomes one of Paldea's Twin Stars alongside Leon, only to have every one of his Poke Balls confiscated during the World Championships final. He cuts all ties with Macro Cosmos, studies abroad in Paldea, then leads Unova to victory with a top-tier team before returning to Galar at the height of his power. I'm not trying to prove how amazing I am. I just want to say that I haven't lost yet.