Go Nam soon wants friendship. But Heung So wants more. will he have ever the courage to tell Go Nam soon. What he really wants

 Your best friend and the person you love disapper from one day to another. You don´t know why. You are left behind with a broken heart. And many questions.   Then 6 years later this friend is coming back. But his personalty has changed. What are you supposed to do? What happend in those 6 years?     This is something that Sun-Hi wants to know. Sun-Hi wants his friend back. She wants the Ma

Key is writing a letter to Minho. In those letter he is writting all his feelings. But what will happen when Minho becomes those letter?