This is what I'm basing my character on:-Being children of angels and demons by origin, the faeries are associated with the beauty of angels and the viciousness of demons. Besides angels, they are the least understood of all magical people—the great ancient mystery in the Shadow World. Although they are hybrid descendants of demons and angels, faeries possess human souls just as other Downworlders do, and they are counted as members of the human race by the denizens of Heaven.[1]

The Fair Folk are known for their unearthly beauty and fair skin, appearing in various pastel hues of blues, greens, and violets, even pearl, to name a few. Faeries commonly incorporate flora and multiple forms of vegetation as part of their ensemble. Many faeries are extremely attractive with delicate and regal faces and exquisitely colored features, such as their eyes, with colors "as clear as glass".

Among Downworlders, only faeries are more committed to notions of honor and etiquette than vampires. But while Faeries always exactly follow the letter of any promise they have made, they deliver these results with great irony, and often use clever wordplay to their advantage in order to create loopholes.

They are known for their cunning and their cruel sense of humor, and they especially delight in tricking humans—both mundanes and Shadowhunters alike. They frequently seek to bargain with humans, offering someone his heart's desire but failing to mention that that desire comes with a terrible cost. They are very long-lived and become only more artful and powerful as they age.

The Fair Folk are also unable to lie. They might, however, tell what they believe is true, even if it is not. They may also expertly weave lies into sentences by using methods such as not telling the whole truth, letting others assume things, or not correcting the people with whom they're speaking; this does not, however, apply to half-fey, whom can lie as easily as any other being.[2]

Just as the fey delight in manipulating humans, they delight in manipulating one another, and usually if the problems of the fey intrude into the rest of the world, it is the result of conflicts between rival courts; some of which are playful, while others are serious and brutal.