Elf: Start with a Vulcan Moth

Natsume travels to a parallel world merged with elves, where elves are integrated into every aspect of people's lives.
In the land of Antarctica, under the wind and snow, a mysterious figure jumped over and drifted away.
Above the hot desert, a terrifying figure shakes the desert like a roaring ocean wave.
As a traverser, Natsume carries the system and starts with a Heavenly King Vulcan Moth. From the third year of high school, he has gradually become the strongest trainer in the world.