Place it at the end of the exchange, after the false claim has been shown, and keep it as the final beat rather than pairing it with another spoken line, so the edit ends on the accusation.
이 사운드에 대해
This is a short spoken clip, lasting just over a second, in which a voice says 'You are fake news'. The wording gives it a dismissive, confrontational feeling, as if shutting down a claim rather than arguing with it. It works as a quick verbal rejection for a claim the listener does not accept.