In the Age of Rebirth, Decisive Killings, Cruelty and Slaps in the Face

I want to read a book similar to "Robbing a Marriage to Substitute a Marriage, Why Are You Crying When I Become a Big Boss in the Military Region". A super-advanced period novel, "Bringing a bride in lieu of a bride, why are you crying when I become a military boss?", The heroine is a special soldier, and she is decisive in killing.