Meshitsukai Reijou wa Kokkyou wo Koe, Tekikoku no Koushaku Kishi-sama ni Dekiaisareru

An exquisite love romance that crosses borders between an elite knight and a dedicated daughter!
Shirley, the daughter of a frontier count, is mistreated by her family every day. When her sister-in-law tries to kill her, she enters a neighboring country that is hostile to her. She is not easily allowed to return to the hostile country, which is rumored to be 'vicious and cruel.' At a loss, she is proposed to marry Oliver, a duke knight of the enemy country!