Vocals: Greg - Mix Engineer: Jeong Hyeok Seo - Mastering Engineer: Jong Sung Baek - Producer: Jong Sung Baek - Recording Arranger: Jong Sung Baek - Recording Arranger: Yun Sang Lee - Recording Arranger: Jae Geun Jeon - Recording Arranger: Ha Young Woo - Recording Arranger: Hye Rin Noh - Recording Arranger: ru:on - Recording Arranger: Jeong Hyeok Seo - Recording Arranger: Se Jong Kim - Recording Arranger: In Ji Jeong