Crimson Vows - Kirishima x Reader
10 parts Complete MatureWhen Yoshino flees an arranged engagement to the Kurosaki clan's most dangerous enforcer, her older sister Y/N takes her place-beautiful, calculating, and far more deadly than anyone expects. Unlike Yoshino, Y/N is deeply involved in the yakuza world, hiding her dark strength beneath a sweet and seductive facade. But Kirishima, her twisted and masochistic fiancé, quickly becomes obsessed. What begins as a political alliance spirals into a dark, possessive love filled with violence, lust, and power plays. In a world where blood runs deeper than vows, who will break-and who will fall first?