Place it at the exact reveal in your edit, just before a cut to the reaction shot. Build tension with the Dun Dun Dun Sound Button first, then follow this clip with the Anime Wow Sound Button for a second shocked beat.
关于此声音
A very short voice clip, just over a second long, of a speaker blurting out "Nani" in a sharp, caught-off-guard tone. It lands as pure surprise and disbelief, the kind of stunned reaction you feel when something unexpected or completely nonsensical happens right in front of you.