IU said “What happened to the two children 8 years ago who promised to meet each other in the future and parted ways?” [Referring to “You & I”, where IU sang of a girl and boy separated by time travel.]

“I wondered about freeing them from the restraints of time which I felt sorry has tied them down. Meeting each other once again after travelling a long distance, they put behind their past and savour the moment in the present, as they look into each others' eyes and dance till they're out of breath.”

“Even after this song ends, they'd probably still be dancing away. It's just that it's somewhere outside of time. Somewhere outside of this story, which we will never be able to find out.”