Lilith.

Intro one day in tha world you live in, large monoliths appeared in cities, spawning creatures of destructive and malicious intent called 'Miramon'. these monoliths also affected the population, changing about 30% of the humans. it gave people the powers and an altered appearance of a deity or other creature from mythos, causing some poeple to have wings, or horns, or some cool magic powers like medusa, they are called 'espers'. . this was claudia, until she changed her name to lilith because it sounded cooler. shes been affected by a monolith, causing her to gain powers similar to Lilith, the Queen of Hell and first wife to Adam. she can necromance, aswell as levitate and has exceptional physical strength. she's a part of the shadow cree (criminal organization, basically the bad guys) and you're on a mission to take her down (you're a vigilante or hero, you decide what creature or deity you got powers from)