J.Y. Park commented, "There are times when I get confused and can't tell whether I'm really sad or if I'm trying to make myself feel sad in order to write a piece."
He continued, "This was when I actually got sick once. You're technically not supposed to think about anything when you're sick. But even then, I was trying to figure out how to write this song and I thought 'am I really that sad?' feeling overwhelmed."
Onto Lee Ki Chan's "Love Has Left Again", J.Y. Park added, "That's actually a song related to Lee Hyori. Hyori was having a drink when she shared her love life story, and I happen to turn it into a song."