Elf full-time trainer

Introduction: When I wake up, what are people around me talking about...the trainer?Elf?His school has also become a high school with the goal of cultivating elf trainers. Everything in this world is related to elves!Trainer, Coordinator, Cultivator...League Competition, Gym Competition, Gorgeous Competition...What profession should I choose...Only children make the choice!Of course adults want them all!