Feared in Hell and cursed by Heaven, Mystery is a devil known for corruption and cruelty. But behind the bloodstained reputation lies a secret no demon dares to speak aloud-he saves souls instead of claiming them.When Heaven grows suspicious, Zoey, a loyal and unyielding angel, is sent to expose him. Her mission is simple: uncover the truth and deliver judgment. But the more she watches Kael, the more her faith begins to crack. His sins don't match his actions. His darkness hides compassion. And his desire for redemption mirrors her own unspoken doubts.As forbidden feelings ignite, Heaven and Hell close in. Loving him could cost Zoey her wings. Seeking forgiveness could cost Mystery his life. Caught between duty and desire, they must decide whether redemption is earned... or taken by force.In a world where good and evil are written in blood, love may be the greatest rebellion of all.