Suterare Hime wa Ijiwaru Ou ni Ubawareru: Kiss wa Shigoto ni Fukumimasen!

Mirabelle had been raised to be the queen for Prince Julien. But Julien has chosen a commoner's daughter to be his bride instead. Feeling abandoned and despondent, that was when Elsa, the king of a neighboring kingdom, suddenly proposed marriage to her...? The headstrong princess will become spoiled by His Majesty's teasing affection! (Source: Ohzora Shuppan, translated)