Place it just after the statement being questioned, then follow it with the Dun Dun Dun sound for a reveal, or end the moment with the Censor Beep sound when the answer is better left unsaid.
이 사운드에 대해
This is a short, roughly two-second effect built around a questioning, interrogative tone, like a sound made to raise an eyebrow at what was just said. It feels puzzled and lightly suspicious, turning a plain statement into something that needs an answer, without sounding angry or formal.