Upon learning about the concept of the Child of the Plane, Herag suddenly thought of the World Tree and the Elf Race from the Elf Plane.
The World Tree and the Elf Race both seem very much like the Children of the Plane for the Elf Plane.
The World Tree is the largest entity in the Elf Plane, with roots spread throughout the entire plane and countless branches forming small World Trees.
The Elf Race relies on the World Tree to grow and strengthen, becoming the most dominant race in the Elf Plane.
Whether it is the World Tree or the Elf Race, they are clearly favored by the World Will of the Elf Plane.
Comparing it with the world of X-617, Herag speculated that the World Tree might have initially been just an ordinary tree, slowly growing into the World Tree under various favors of the World Will.
The Elf Race probably started as an ordinary race, mutually dependent on the World Tree and growing stronger with the help of the World Will.
