Vocals: Hae Bin Sung - Recording Arranger: Hae Bin Sung - Recording Arranger: Kee Ho On - Recording Arranger: Sung Hoon Lee - Producer: Hae Bin Sung - Producer: Kee Ho On - Producer: Sung Hoon Lee - Mix Engineer: Tae Hoon Gwon - Mastering Engineer: Tae Hoon Gwon