Ecchi Succubus Dermania

She is a Succubus with a skin condition that causes her nerves to receive increased amounts of stimulation, thus making her feeble. She is able to fly and levitate, but she refuses to walk much, despite having comfy knee-high Succubus boots, custom designed for her condition.

Idle Animation:
She stands straight, folds her wings and crosses her arms. occasionally, she will stretch a single wing out and fiddle with her fingers.
After a while, she will sit in Seiza fashion with her wings folded and occasionally flit either her wings or ears with her eyes closed.
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Trivia:

Her name is based on her condition. It's supposed to be a pun. I don't know if it worked.

The Succubus Boots that she wears have a nerve-nullifying curse placed on them; The wearer's senses (in her case, the nerves in her feet) are dulled whilt the item is equipped. This makes her feet feel "normal" while she wears them.

The skin has a gradient coloration, based on the length of time her skin was saturated in the alien chemical. 

Dermania's Wings emerge from her lower spine. Her "Butt-wings" work the same as any other Succubus, the difference being that she must change her posture a bit to fly straight and balanced.

Unlike Cahlrein, she does not use her wings directly as weapons. She also only has one set. Similar to Cahlrein, she can use wind & wing-based attacks. She cannot, however, communicate with animals

Dermania is believed to be immortal, though it has never been proven. Many older demons from centuries ago recognize her, though it may be because of time travel.

The reason two different heights appear for Dermania is because she actually shrinks when she is exposed to Holy/Light power. Her true height comes in when she is exposed to Dark/Shadow power.

Dermania has a 'fetish' involving the butt. It is believed that when she is short (Due to light magic), she is attracted to other people's asses more because they are at head level. She is tempted to groping males and females alike, and also enjoys being held by her own rump while straddling people she likes. (front or back)

Despite her size, while only 3' 3.3", Dermania can lift an average adult and carry them while flying. She has the same wingspan, which implies that her wings are unaffected by Light/Holy magic.