A love that begins from the revenge of two completely opposite people.] As soon as he came of age, Michelle Anatold, the youngest son of a southern noble family, heads north to get married as if sold for money. His partner is the cold northern lord, Ian Swelleg. However, the place Michel arrives at is not the promised castle but a small mansion. "For the next month, I will serve Anatold in place of my master. I'm 'Ain.'" Waiting for Michelle there is not Ian Swelleg, but a servant called 'Ain.' This is to educate Michelle for a month before the marriage, teaching him manners and culture unfamiliar to him in the north. With black hair and pale eyes, the cool-looking Ain asks in a voice resembling the master. "Did I not tell you? I will teach you so that even in a single night, you may please my master." Thus. the education to win Ian Swelleg's favor continues day and night. A servant who resembles the master. Is it a coincidence, or was it intentional?