Konyaku Haki wa 365-nichi Go ni

Lana dreams of succeeding her father as lord of their territory. However, she is suddenly ordered to enter a political marriage with Klaus, the first prince of a neighboring nation long at odds with her own. From the moment of their engagement, Klaus has remained cold and distant. Lana believes that if she can endure the engagement for just one year, she can break it off and return to her hometown. But one night, Klaus unexpectedly appears in her bedroom...!?