오갱(O-gang) [Blue Dog]   여전히 Blue한 이야기   [Credit] All by 오갱(O-gang) Executive Producer 오갱(O-gang) Composed by 오갱(O-gang) Lyric by 오갱(O-gang) Arranged by 오갱(O-gang) Chorus by 오갱(O-gang) Recorded By 오갱(O-GANG) @ OGANG Studio Mixed By 오갱(O-GANG) @ OGANG Studio Mastered By 오갱(O-GANG) @ OGANG Studio Art Design 오갱(O-gang)