The World On arirang

This is a song written by Roy Kim himself that is like a sequel to his previous single, "Only Then." It presents a realistic story of a man having to say words of goodbye to the woman he once loved. The emotive melody and vocals blend together flawlessly in this breakup song.

This is a hybrid dance song with a mix of elements of moombahton and house music laid over electronic hip hop. It's a dance track that exude a sense of passion, with the intense vocals of the main vocalist, Jiwon, and the addictive hook by Jueun who showcases her rap and singing skills in the song.