Sixteen-year-old twins Luca and Sacer Umbra are thrust into a fate darker than they could have ever imagined. On their birthday, a seemingly ordinary trip to the capital city of Valtara turns catastrophic when Luca's dormant powers erupt uncontrollably, unleashing black flames that reveal a horrifying truth: he is the reincarnation of Damon, the Demon King. Marked by his red eyes and the shadows that swirl within him, Luca's awakening plunges the world into fear, suspicion, and whispers of a dark legacy reborn. Sacer, his twin, embodies the light to Luca's dark-a reincarnation of Gabriel, the legendary Hero who once defeated Damon. Bound by fate and torn by destiny, Sacer faces an impossible choice as his brother's sworn nemesis. Haunted by the duty he never asked for, he is thrust into the role of the hero destined to destroy his own flesh and blood. Forced to go on the run, Luca grapples with a power he never wanted and memories that don't belong to him, as shadows from his past life threaten to consume him. As he searches for answers, he must fight against both the darkness within and the forces that seek to end him. In a race against fate, Luca and Sacer's bond will be tested as they confront their shared past, their clashing destinies, and the unyielding question: is it possible to escape the roles they were born to play, or will they be forced to fulfill the prophecy that looms over them both? A tale of sibling loyalty, ancient grudges, and the struggle between fate and free will. In a world torn between light and dark, the twins must decide if they are bound by their past or free to forge their own future-even if it means fighting against each other.