Akutou Ikka no Mana Musume, Tensei Saki mo Otome Game no Gokudou Reijou deshita.

A girl who grew up as the granddaughter of a gangster family was reincarnated in a otome game, where the early modern mafia makes a secret move. She was the beloved daughter of the five major families that support the monarchy from behind the scenes! A dangerous love game between a former gangster’s granddaughter and a villainous fianc begins!