O, X? 이건 세모 같은 사랑 [Credit] 1. Triangle Lyrics by Urban Fisher Composed by kyuu, Urban Fisher Arranged by kyuu, hwantar Guitar by 정경환 Bass, Drum by kyuu Mixed by allday4real @allday4real Mastered by allday4real @allday4real Album Cover by RUN BOY! @wmsyan A&R : 이희웅 @lee_hee_woong