[Be My Valentine]Will you be my valentine? :: CreditLyrics by SeinComposed by psv:gun, 구교석Arranged by psv:gun, JamiehProduced by psv:gunAssociate producer JamiehVocal by 구교석Chorus by 구교석Acoustic Guitar psv:gunElectric Guitar 이종현Bass Guitar 유건Synth JamiehMixed by JamiehMastered by 박준 @ SoundMaxAlbum Cover photographed by @enkiesAlbum Cover designed by 배영은