Put it right after the on-screen question it answers, as the closing beat of the exchange. Build false tension first with the sudden suspense cue, then follow this reply with kids cheering when you want the confirmation treated like a huge victory.
이 사운드에 대해
A very short clip, under a second, of a robotic voice delivering a single flat 'Affirmative' in K-9's unmistakable style. It feels dry, certain and quietly funny, because the answer sounds completely serious while confirming something totally ordinary, turning a simple yes into a deadpan punchline all on its own.