Young-joon and So-yeo are a young couple with their marriage relatively stable. On a day their mutual friend opens a wine bar, they come across Min-jae and Yu-na, a couple quite the opposite of themselves. After a trade of talks, Young-joon becomes a client of fashion consultant Yu-na, while hotelier Min-jae agrees to help So-yeo book a hotel for her Hong Kong business trip. So-yeo meets Min-jae by chance in Hong Kong, while Young-joon trades suggestive remarks with Yu-na who visits him on a consulting session. That night, the four of them find in the other partner what had been missing in their respective marriages…(hancinema.net)
Ha Mi es una chica que nunca ha tenido pareja. Un día se tropieza accidentalmente con un chico, Young Bin, de quien se enamora enseguida pensando que el destino los ha unido. El problema es que Young Bin es un egocéntrico que la trata como a un objeto. Y eso se debe, según la hermana de Ha Mi, a que su grupo sanguíneo es tipo B. Ha Mi no hace caso y trata de hacer cambiar la actitud de su novio.
