Dungeon World elf thing

To hear those versed in legends and myth, the tale was thus:

In the beginning, there were no elves. The gods saw fit to make no such people, instead delighting in myriad others. Many of the gods' favorite children lived within the Great Forest, where even the trees could think, feel, and sing. Deep in the forest lived a small, ugly plant known as the Wilting Tree. Her flesh was soft and spongy, with no branches, and a single spongy leaf held aloft her head to protect her from burning sun and summer hail. About one foot high she stood, under the boughs of the Heart Trees, those favorite daughters who held within their bosoms their dryad-selves, children and avatar both to the Heart Trees. In the meadow, the dryads frolicked to their hearts' content, and the Wilting Tree felt a very dull and longing pain - she was lonely. The dryads paid her no mind, even when she called to them. The satyrs would speak with her, but only for a moment, for her form was not fair to their eyes. Even the animals had little interest in her, apart from taking a nibble from her. The Wilting Tree lived in such a way for many years, and the tears she wept formed a puddle around her roots that may have well as been an island lost in the sea.

Then, one day, a different being came along. One that made the animals flee, and the dryads retreat into their heart trees - it was a human. A woman with long, blonde hair and green eyes, wearing simple clothes of cotton. She carried with her a slab of leaf-thin tree flesh, upon which she etched markings with bird feather and dark liquid. Here was the human, the trees in the forest warned each other. Those horrid creatures that took whatever they wished of the forest and bent it to their use, giving little to nothing in return. And yet, as the Wilting Tree observed her, she saw no ugliness in this human's heart - only the wonder in her eyes. And soon, this human bent over the wilting tree herself, sat down, and began to mark on her slab.

The Wilting Tree found herself too shy to speak, but the human said, "How pretty. Among all the things in the forest, this is the most unique..." The Wilting Tree felt something stir within her, feelings of embarrassment, contentment, jealousy, and.... desire, strangely enough. She'd never been complimented before, and found she quite liked the feeling. The forest did not like this human? So be it, the forest did not care much for her, either. The human sat there for what felt like ages to the tiny tree, before smiling, standing up on her feet, and walking back into the woods. And of course, the Wilting Tree had no feet to follow, no arms to outstretch. Even her voice was bit a ragged whisper as she called out, 'Wait!". And of course, she wasn't heard. That terrible sadness began to well up in her again, and then, finally as the human vanished into the distance, she called out with her re-found voice. "Oh gods, why did you curse me so? Why am I not free to dance like the dryads, play music like the satyrs, or wander like the humans? Must I languish here forever, the feeling of freedom and companionship forever beyond me?"  And the Spirit of the Great Forest heard her lament, and transformed her daughter into a form not unlike the human, tall, willowy, with long blonde hair, but pointed ears, reminiscent of the dryads. The Wilting Tree was a tree no more, but the first elf. And so she ventured into the world, searching for the human who had stirred her heart.

To hear Fidelity tell it, legends and myth likely have some grain of truth, but this is the most popular and accepted theory at her university:

Elves, such as they were, were not created as a people. That much is shared with the myth. Fidelity theorizes that their origins lay as a parasitic plant species that feeds on soil nutrients, decomposed life, and mana. However, things changed when one strain of this fungus tasted the residual mana left behind in the corpses of humans. Their species propagated around human graveyards, drawn to the dregs of the human soul, and eventually underwent a change. At this point, she posits, they metamorphosed into small creatures only six inches tall. These proto-elves would live in and close to human settlements to raise their children on magic leaving the bodies of human dead, and over time their bodies adapted more and more human-like features. They lived in the boughs of trees or underneath homes, and tamed rats, foxes and birds to serve as their mounts and carry them undetected around settlements. Eventually, they started becoming larger and larger, evolving until hiding from the humans was no longer convenient - but at that point, they were human-like enough to begin integration. As of now, elves are still ultimately plant-based beings, but have evolved biological components mimicking human body structure, such as internal organs, blood, and hair. As a species, like their fungal roots they are able to reproduce both sexually and asexually and have somewhat of a stronger connection to the forests and are sensitive to magic. Many in the modern day learn to drown out this sensitivity and operate similarly to humans, but some develop talents in this area.