Artist: Greg - Co-Arranger: Jong Sung Baek - Co-Arranger: Youn Sang Lee - Co-Arranger: Jun Min Kyu - Co-Arranger: Ha Young Woo - Co-Arranger: Jeong Hyeok Seo - Co-Arranger: Se Jong Kim - Co-Arranger: ru:on - Co-Arranger: Ji Heon Han - Chorus: ru:on - Chorus: In Ji Jeong - Mix Engineer: Jong Sung Baek - Mastering Engineer: Jong Sung Baek - Producer: Jong Sung Baek - Vocalist: Greg