The End of the Elves, but We Will Never Be Separated

[Pokémon fan fiction, no system + doomsday survival + farming + animated battle + no harem] [The story setting is based on the main game and its spin-off pokopia] Social animal Cheng Cheng traveled to the Kanto area of the elf world and was reborn as a 6-year-old child. By chance, he was adopted by Team Rocket leader Apollo and became a trainer at the Bluestone Town Gym. However, when Cheng Cheng was 12 years old, he discovered from clues that the elf world was about to undergo a doomsday-level catastrophe two years later, just like the history of the game. Although humans already have countermeasures to escape into space, the decision to electronically store the elves for refuge in this plan means that everyone may say goodbye to the elves in the future. Cheng Cheng's feelings for the world did not allow him to do this. He needs to use all available resources to establish a new refuge plan including an elf habitat! In order to gain support and voice, he has to become strong enough within a year and become the league champion! In order to get more manpower support, I have decided to be the boss of Team Rocket! In order to truly realize the refuge plan that can last for more than ten years, he needs to use the information from his previous life to carry out a series of ecological cycle transformations. Conduct geological surveys, optimize native tree species, collect materials, and work together with elves and partners to overcome this doomsday that lasts for more than ten years and never separate!