알고 보니

it turned out that

→ 알다
phrase Rare #16,927
it turned out that Used when something is discovered to be different from what was expected.
KO: 알고 보니 그 사람이 내 친구였어요.
EN: It turned out that person was my friend.

알고 보니 못된 놈 이었어요

Turns out he was a bad guy

— 러브 액츄얼리 (2003)