Place this clip as the bridge between the before shot and the after shot, then follow it with a bruh reaction if the empty space needs a stunned response from whoever is left. For an exit montage, repeat that sequence for each person who leaves.
About this sound
This is a two-second Japanese voice clip of the phrase "Keshigomu Magic," literally about erasing something like magic. Its delivery feels quick and punchy, turning a simple visual change into a funny, deliberate payoff. The brevity keeps it acting like a trigger, so a disappearance lands as clear and intentional rather than accidental.