Ransoms

They were sent to the Earth's surface to catch Persephone- not to find a weakness.
What do you call the offspring of Gods and demons? Milihpen are the immortal abominations that have not an ounce of human in their blood, born with the body of a Siren and the inky black eyes of the world's most ancient demons, Milihpens reside in Hell until the three abominations that sat beneath Hades are plucked from their thrones, and tossed onto the surface of the 21st century to find Persephone.
Blessed with beauty and cursed with sin, Milihpens are destined to have faults.
They sin like demons, and they fall in love like Gods.

(longer description inside)
WARNING: Mythology, girl x boy, boy x boy, girl x girl.