한때 애틋했었던 사이니까 [Credits] Lyrics by 현서 Composed by 정바스, 현서, 310 Arranged by 정바스 Drums by 정바스 MIDI Programming 정바스 Bass by 백경진 Guitars by 체온 keys by SAMIN BGVs by 현서 Mixed by 고현정 at koko sound Mastered by bk! at AB Room [Staff Credits] Executive ONGRAY Corp. Executive Producer 배훈광 Production Supervisor 정바스 A&R 디드 Artwork by sangon(산곤) Marketing Manager 최재원