The Dark Goddess Persephone. She is from Saint Seiya online. The design has been inspired on it.
In the mythology she is the daugther of Demeter and Zeus and  the wife of Hades, that makes she The Queen of The Underworld.

(fanfic) Is hard to tell if the time limitations were used in the Elysium(six months in Underworld, six in Olympus. complaining the Hades Temple situation, or simply a convenient godly female human) .But since Hades is death she is a Olympian,the Underworld new ruler, and ... the trophy of Anubis!