Fairy's Sloughed Feathers. Just like the remnants of fairy light, they are both materials of the First Energy Level of the fairy species.
And the Second Energy Level consists of the Fairy's Flying Feathers and the Fairy's Streaming Light.
The Fae are a naturally sublimating species, where every member is of the Second Energy Level or higher; they were considered legendary in the previous epoque, and some even believed they were merely a fairy tale.
Unexpectedly, in this current era, after the Heavenfall, the Fae, who had almost faded into obscurity, have once again returned to Terra's grand stage. They have even established their own small city-state, 'Falling Star City,' around what is now known as the 'Sea of Fury,' or the distant Falling Star Inner Sea.
Humans' kingdoms refer to intelligent beings who are neither human nor Magical Beasts as 'Different Races' and 'Alien Forms.'
