Taidana Akuyaku Kizoku no Ore ni, Konyaku Haki Sareta Akuyaku Reijou ga Totsuidara Saikyou no Fuufu ni Narimashita @COMIC

When Alban awakens to the truth that he has been reborn as the villainous nobleman of a fantasy novel, he resolves to defy fate. Knowing the hero is destined to strike him down, he throws himself into relentless training in both swordplay and magic, determined to escape the ruinous ending written for his character. But his careful preparations are thrown into disarray when he learns that his arranged bride is none other than Leticia—the infamous daughter of the story's villain, a young lady shadowed by countless unsavory rumors. Dreading what manner of wicked girl might await him, Alban braces himself for the worst. Instead, he finds a woman as pure and radiant as an angel—so close to his ideal that he falls head over heels on the spot. So utterly smitten does he become that his carefully laid plans to avoid the bad ending fade from his mind entirely. A new purpose takes their place: someone has conspired to bring about his beloved wife's downfall, and Alban intends to make them answer for it. Turning their shared reputation as villains into a weapon rather than a curse, he devises a cunning trap designed to lure the mastermind out of hiding—though what awaits them both when the scheme unfolds remains to be seen.