Pokémon: I picked up a reborn Eevee at the start of the game.

Transmigrated into a poor household in a world of fused spirits?
Xia Chen, who started on hellish difficulty, said he wasn't worried at all.
No money to become a trainer?
Let's start as researchers!
Researching new evolutionary paths, discovering little-known Pokémon abilities, and searching for yet-to-be-revealed Mega Evolutions and Z-Moves...
Once you've accumulated enough resources, you can become a trainer, a gym leader, or a lazy Elite Four member who lives a carefree life, raising a bunch of adorable Pokémon to spend the rest of his life with.
But his carefully planned life was disrupted by a stray Eevee and a host of other Pokémon with amazing skills...
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Ibrahimovic: "Now that I've been reborn, I'm determined to make up for the regrets of my past life and climb to that unassailable peak with Xia Chen!"
Milotic: "A golden carp is no ordinary fish! If an Alolan Exeggutor can become a dragon, why can't I? Dragon Raising System, activated!"
Gardevoir: "Why is it that none of the Pokémon life simulation results have the ending I want? I'm so frustrated, let's try again!"
Little Diamond: "If I just keep following this path, I can evolve into the legendary Diancie? I understand!"
……
This book is also known as, "I Really Didn't Want to Be Carried Away by Elves," "My Elves All Have Big Problems," and "Me and My Overpowered Elves."