Element: Fire

Satan the God of Demons, who fell out of favor with God, seducing humanity into the ways of sin, and who now rules over the fallen world. Yet during his past, he fell in love with a human girl, whom have died, after giving birth to two of his children, one was a human boy like his love, and other was a girl who bare his demonic blood. And that girl is Okumura Rin, the demon-slayer.