biological younger sibling
친동생 이요?
Your younger sibling?
— Oasis (2002)
잠깐, 친동생?
Wait, a younger sibling?
— 워 머신: 전쟁 기계 (2026)
친동생 아니거든요
They're not my actual younger sibling.
— 언터처블: 1%의 우정 (2011)
아니 동생 이랍니다 친동생
No, they're my younger sibling—my actual sibling.