18 years ago, Mr. Lee and Mr. Go signed a contract where they both agreed that their child will get married when they turned 25. They also both agreed that they will tell their son and daughter about this when Mr. Go's daughter turned 18.

And the day has come...

Go Jieun's 18th birthday was today. She was truly excited about this day where she can now be really totally legal of everything.

But what if an unexpected things will happen on this day?

Finding out that she was involved in a marriage contract since birth. That she'll be marrying the guy in front of her when she turns 25 and give their parents grandchildren.

What will now happen to her life if she was also forced to change school so that she's just near her future husband?

  Will Jieun and Ljoe be closer?

    or stay as strangers?                                                                       

                         Will they even learn how to love each other?

  Or end up having their own love lifes?