Lee shared that DSMN was the most challenging of his four releases at the time, largely due to his busy schedule. He wrote the track 'On Your Mind' on a day off during 2PM's Galaxy of 2PM tour. The track is themed around forbidden love and has a smooth, mid-tempo groove with an '80s boogie influence. Lee also revealed that his goal with the release was to create hybrid music unbound by genre. “Run to You” blends tropical house with dancehall reggae.