Gen

Gen (幻, Dream) are ubiquitous beings that are the product of Abstract Materialization (抽象表れ, Chūshō Araware). Their existence is akin to the likes of, however, they are still a natural facet of the world. They are entities materialized from the dreams of sentient beings connecting with the spiritual energy that permeates the world, thus being realized as spiritual entities, rather than physical.

Their very conception makes them virtually impossible to see for those who do not perceive the world in its natural state. As such, only children and those who have been given awareness to the dichotomy of the world's physical and spiritual aspects are able to both see, and in some cases, manipulate Gen.

Given that they are the materialization of dreams, Gen come in a wide variety of colors in correspondence with the nature of the dream. In their base state, the shape many see is akin to the trail of a shooting star. Individual dreams do not tend to roam around, but rather, clump together in long wisps based on similarity, making distinction difficult for those not accustomed to them.