It's a song about the moment of deep sorrow a boy felt for the first time in his life, when the moment came when he might lose someone who is as good as the boy's whole life, along with that despair, is expressed in the words 'I don't want to cry' in the pure heart that never wants to lose it.
It is the first song that SEVENTEEN has tried to do EDM in earnest, and it is a song that SEVENTEEN tried to maintain the pure feelings of the boy, but tried to show a deeper look and deeper emotion.
Also, a synthesizer with lyrical sensibility and a violent beat intersected, capturing the heart of Seventeen, who looks like tears are about to flow but doesn't want to cry, especially the catchy beat of a listener between sad emotions.