Tensei shita Onna Mafia wa Isekai de Heibon ni Kurashitai: Assassin Ikka no Hakushaku Reijou desu ga, Denshi to Akuma na Danchou ga Tsukimatottekimasu

Roselle, the daughter of the Count of Schelling, has memories of her past life as a member of the "mafia." The Schelling family outwardly pretends to be a "merchant family," but in reality, they are a "state-sanctioned family of assassins," and Roselle spends her days carrying out assassination requests. Roselle wants to live a safe and peaceful life, but her sense of responsibility and caring nature leads her into conflicts between countries...! Moreover, she gradually becomes doted on by the knight commanders "Alfredo" and "Klaus," who come to help her with a request...!? Will peaceful days ever come for this reincarnated female mafia member?

(Source: Hifumi Shobo, translated)