Hyolyn's song "One Step" is a love song about wanting to take the next step in a relationship. The lyrics describe the awkwardness of being alone with someone you like, the feeling of wanting to get closer but being hesitant to make a move. The singer expresses her affection for the other person, liking everything about them including their voice and even their unfunny jokes. She apologizes for making the other person wait and explains how much she cares about them, hoping they understand her feelings. The chorus repeats the message that all it takes is one step to move the relationship forward. The song is about the excitement and nervousness of being in a new relationship and the desire to take things to the next level.