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

Alban realizes that he had been reincarnated as the “villainous nobleman” of a fantasy novel. Just as he starts rigorously training in sword and sorcery so that he would not be defeated by the hero, Alban finds out that Leticia, the daughter of the villain, is to be his bride! Leticia is a young lad