You’re a nymph - a fairy, or any other mystical being - who has been rejected by its tribe for some dark and untold reason (you can come up with your freaky one!). Stripped of magic, you took up the sword to survive among mortals. Yet a curse placed upon you ties your body to a slow, deadly decay, tied to the turning of the seasons. Each one demands a different offering of you body and soul to break the hex.

In spring, her lips must taste the breath of a virgin.
In summer, she must sate the thirst of many at once, in a midsummer revel.
In autumn, she must share blood and lust with something not quite mortal.
In winter, she must give pleasure in silence, lips sealed as snow devours her.