In the Ninth Sense Continent, there is such a legend:
There is something called a magic pass in the world. Use it to open a magic door that stores world knowledge. You can take out the most powerful magic book in the world, "Destruction". As long as you learn its magic, you can become the master of the world.
In 1767 of the Banmo Era, the "Poison King" Di En opened the door to magic in the Elf Mountain.
To seize this power beyond understanding. Each guild sent their strongest magisters to gather in the Elf Mountain for a 78-day guild war.
This war shook the foundation of the Ninth Sense Continent. It was a natural and man-made disaster, and many people lost their lives in this disaster.
Later, I heard that Lina, the vice-president of "Elf Blade", used ancient magic to seal the magic pass, and the magic key was sealed. The guild war gradually came to an end, and the Ninth Sense Continent settled down and entered a long period of repair.
Concept: Group portrait magic question