Place it right after the confusing line or reveal in your edit, before any explanation starts. Follow it with the anime wow for a bigger second reaction, or lead in with the dun dun dun when the moment needs a cliffhanger ending.
Sobre este som
This is a short 2.3-second clip of a soft, high voice saying a single drawn-out 'huh' with a puzzled lift at the end. It feels sweet and bewildered rather than annoyed, like someone cute who has completely lost the plot and needs everything explained again from the start.