I came up with this story while watching Mr. Plankton. That K-drama was the very first one that made me cry in every episode. Even after finishing it, I was left dazed for days. And to make it even more emotional, every time I play Lee Hi's song My Beloved, I remember that drama, and I end up crying all over again. It was also the song I used during our film shoot so I could cry easily.

So, I'm writing this story to release all these feelings I've been holding in—the urge to cry just so I can cry. So, if you're looking for a reason to cry, you can read this book.