[Be My Valentine] Will you be my valentine? :: Credit Lyrics by Sein Composed by psv:gun, 구교석 Arranged by psv:gun, Jamieh Produced by psv:gun Associate producer Jamieh Vocal by 구교석 Chorus by 구교석 Acoustic Guitar psv:gun Electric Guitar 이종현 Bass Guitar 유건 Synth Jamieh Mixed by Jamieh Mastered by 박준 @ SoundMax Album Cover photographed by @enkies Album Cover designed by 배영은