Elf: Start a Small World

A hundred years ago, the world suddenly changed and merged with another world, and a new world was born.
Thus began the age of elves.
Natsume traveled to this world, obtained a small world at the beginning, and led her Katie* to the pinnacle of the league.
Unlock the hidden secrets of the world.
Fusion of a gang of katti*, a charizard using a dragon slayer crystal.
It seems the world is a little different.
Opponent: That's not because you're a cheater.
Natsume: This is not my fault, the treasures born in the secret world are so special.
System: I may not be human, but you are a real dog.