Gunshot death brings Reo before the goddess Ophelia, who grants him a extraordinary opportunity: reincarnation with full memories intact, plus a legacy card of immense power. Six cards await his selection—five bearing distinct abilities, one blank and treacherous. Against Ophelia's counsel, Reo claims the unmarked card and receives the SSS Rank Dark Dragon Legacy, a power so legendary that only a single human across her entire realm has ever wielded it. Reborn as Silva within a noble household, he faces immediate rejection. His family deems him defective for lacking magical prowess, unaware his dormant Dark Dragon Legacy hasn't yet awakened. His father's shame transforms into cruelty; execution looms until his mother intervenes, securing his exile to distant relatives in a remote settlement far from the capital. As Silva's Dark Dragon Legacy unfolds, his progression shatters all natural limits. He begins unraveling the goddess Ophelia's hidden purpose while building a new life in his adopted home. Between mastering his awakening powers, Silva carves time to settle an old score with the man who tried to erase him.