I'm Going to Marry the Poor Count in the Frontier, so I'll Work Hard to Reform the Territory summary:
Angelique's engagement was broken by the second prince for the crime that she did not commit. Furthermore, by the order of the king, she will be married to the impoverished Count Sergei, who lives in a remote region. What awaits her on her way to the frontier is a very poor estate beyond her imagination and a handsome count!