You can love someone with all of your heart, even if you know that they don't love you back. You'll aspire to have at least one perfect day with them, even if it won't change how they feel about you. But what will happen when that perfect day finally comes, and you don't get the reaction that you were expecting?

Changmin is suddenly thrown into the dark world of heartache, and he feels more lost than he ever has in his life.