Both of Krystal Jung which is known as Krystal Quinn and Kim Jong In which is known as Kai or the international playboy at their studied at the same high school in Seoul. They are cousin and childhood enemy for each other. For the sake of their parents to have their grandparents will, both of them must marry one another for a year. First three month is their trial to love each other and the other nine months is for them to have their first baby. After their soon to have baby is one year old, they are free from the will and can have divorce but with some requirements. Both of them must agree to have divorce and already have a partner to live after that.
Want to know what will happen before, during and after the marriage? Read this not so good story and open your mind to start imagine about the whole story!