Wanting to avenge the loss of her twin sister, Emilia sold her soul and traveled, with the enigmatic Prince of Wrath by her side, to the Seven Circles, to become the Queen of Demons. However, the first rule of the demon court is simple: Trust no one. Because the longer Emilia stays in Hell, this alluring vicious world, the clearer it becomes that nothing is as it seems. Even the Prince of Wrath, her once ally, may be keeping secrets about his true nature. And soon Emilia finds herself caught between the Prince of Wrath and his even more malevolent brother, the Prince of Pride, the King of Demons.

Luxurious palaces, spectacular dances, scheming courtiers, and conflicting elements compose the setting in which Emilia tries to discover what really happened to her sister, while also unlocking the mysteries of her own past. But will she be able to escape from her own sins…