The husband and wife of Park family thinks that it is such a brilliant idea to marry their oldest son to the innocent, youngest son of Byun family. The parents have been friends since like forever but never contact each other after the Parks got married and moved to England. And now, they back to Korea and they want their friendship turns into something more significant. Little did the parents know that the oldest son of Park is having an affair with his own personal assistant. The marriage will be held as plan and the young bachelor of Park will hide his dark secret from his spouse.