31st Consort

Briefly about 31st Consort manga: 

Feria, the feudal lady’s younger sister from a remote region, has been chosen as the 31st wife of the king… Since the King visits the candidates in the order in which they were appointed, once a month, she can only meet with him on the 31st day of each month. “What am I, the queen of failure?” She accepts her destiny and spends all her time taking care of the fields. However, falling in love with the king at their first meeting makes her 31st wife’s place the biggest obstacle.