Place it at the turn in an edit, just as a character's mood shifts, then follow it with the awkward moment sting for the beat to settle, and save the Mangekyo Sharingan sting for the reveal that follows.
關於此聲音
This is a short spoken line, lasting under two seconds, in which a voice turns to Sasori and asks, in a casual, laid-back way, whether something is wrong with him. The delivery feels playful and mock-concerned, like a friend calling out a sudden mood change rather than offering real comfort. It lands as a quick, knowing nudge for anyone who recognises the name.