A giant tree reached for the clouds in the center of the elf kingdom, Elvenheim. It was the last remaining world tree in an era where the power of the myths was almost lost, and its name was Yggdrasil.

Three hundred years ago, the four high elves had pooled their strength to help this world tree, which was still a sapling, grow to maturity. The tree’s mana pressure was so overpowering that ordinary humans wouldn’t be able to breathe in its presence. Even senior magicians were barely capable of withstanding its pressure. Yet this pressure was only around a tenth of the pressure world trees in the primordial world would possess.

However, there was an area directly over the roots of the world tree that was so suffused with mana that it was difficult even for elves to enter. It was a place where only the gardeners of the world tree, the high elves with Arv’s blood, could access.

This was the most secret place in Elvenheim. It was well known among the elves, but it was...