When Prince Rio catches Kaija, a maid at the palace, stealing a priceless jewelry from his room, he wickedly employs her as his personal servant, making her work for her misdeeds. Kaija is timid, but she also has the willpower to put Rio in his place when necessary. She knows what royal men of the palace are capable of and is determined not to fall under their devious spells. However, the more time Rio spends with Kaija, the more he falls for the maid, an emotion he had never planned on exploring given that he is to be betrothed. But the heart wants what the heart wants. And as the future king of Osksos, Rio is determined to set his own standards. But at what cost?