출생의 비밀이 있다 · 출생의 비밀이 밝혀지다 (is revealed)
secret of one's birth (classic drama twist)
Example
주인공에게 출생의 비밀이 있었어요.
The main character had a secret about their birth.
Word parts
출 go out+생 be born+비 hidden+밀 secret
출생 'birth' + -의 'of' + 비밀 'secret'.
Good to know
The cliché twist where a character learns their real parents are someone else, often a rich family. Pronounced [출쌩에 비밀]; 의 is usually said [에].
Related words