Fly (날아가다) by Urban Zakapa is a heartfelt ballad that explores the bittersweet aspects of love and the longing for freedom. The lyrics describe the beautiful memories of a past love that have left a deep pain. The singer wonders why love becomes more beautiful the more it hurts. The chorus expresses the desire to fly away and escape from the pain. They want to fly far away and leave everything behind, but they also want their loved one to fly further and be happy. The repetition of "never know" suggests uncertainty and the contemplation of what could have been if they had met earlier. The next verse reflects on the countless days spent together with their loved one and anticipates the happy days their loved one will experience in the future. Again, the singer questions whether they can love again and open their heart once more. They acknowledge the difficulty it may bring but still wonder if it is possible. The song ends with a plea for their loved one to come back. They ask them to return, finding comfort in the thought of their presence. Overall, the song portrays the emotional struggle of love and the longing for freedom and happiness.