Put it just before a character reveal or dramatic entrance, then follow it with Za Warudo Time Stop for a power shift or Mangekyo Sharingan when the focus turns to a single intense stare.
關於此聲音
This six-second clip pairs a soft, teasing fufu laugh with the spoken line 'so you've arrived...?' in a calm, knowing voice. It feels playful and faintly menacing, like a villain who has been expecting you all along and is delighted that you finally walked in.