Place this clip right after the dialogue cut in your edit, then follow it with a shocked sound for the reaction shot and finish on nani sore for the confused reply from the other character.
Об этом звуке
This is a six-second clip built around a repeated krik effect, short enough to land as a single reaction beat. It gives a tense, slightly awkward feeling, like a pause where something feels off. Its source is labeled Shingeki no Kyojin - 11, linking it directly to that anime.