Ellinia Winter Preparations

Wing of Ellinia is making winter preparations for the fairies. How do fairies prepare for winter? If you're curious, go find Wing the Fairy in Ellinia.

Wing the Fairy begrudgingly tells you that fairies can't stand the cold weather. Normal cotton is too heavy for them, so they use a special cotton that's as light as air to stay warm.
They haven't been able to obtain this rare cotton yet, and while he doesn't ask for your help out loud, he has a desperate look in his eyes.
They say that the cotton, Air-Light Fluff, can be found on the monsters up in Ellinia's treetops.

Wing the Fairy didn't seem very grateful, but you brought him Air-Light Fluff from the monsters of the forest.