Fiance wa Mazoku no Kuni no Reitetsu Ouji

Princess Laila of the human kingdom is to marry Prince Dirk of the demon kingdom for the sake of an alliance. The two had met before, and at the time, Laila thought he was a kind demon. However, when they meet again, Dirk is different from that impression and treats Laila coldly. Laila tells herself that it is for the sake of her country and the alliance, and endures it, but there are moments when Dirk treats her kindly like he used to be.. A frustrating love story between a cold prince and a devoted princess!