[국어사전] 외사랑 : 한쪽만 상대편을 사랑하는 일. 자신이 상대편을 사랑하고 있다는 것을 그 상대편이 알지 못하는 경우를 이른다. [CREDIT] Lyrics by 윤토벤 Composed by 윤토벤 Arranged by O.YEON , 박지환 Piano by O.YEON Midi programing by O.YEON Guitar by 최영훈 Executive Producer 윤토벤 (NE,VOT) Executive Supervisor 손박사 (NE,VOT) Production Planning & Marketing Director 김유단 (NE,VOT) Administration Director 윤건준 (NE,VOT) Video Contents 이재준 (NE,VOT), Kim Minwoo (Team Inspire99), Sung Sihyun (Team Inspire99), Park Eungyeol (Team Inspire99) Management 이재준 (NE,VOT) Mixed by 박지환 at Nevot Studio Mastered by 권남우 at 821 Sound Mastering Vocal Recorded by 윤토벤 at Nevot Studio Digital Editing by 윤토벤 at Nevot Studio Artwork by 이재준