Place it near the end of an edit, just after the turning point and before the reaction lands. Follow it with Anime Ahh, then finish with Happy Wow to close the sequence on the smile.
關於此聲音
This roughly ten-second clip is a musical passage credited to Ricardo Fábio and titled Coração De Criança, shared here under the name Sorriso Resplandecente. Its soft, childlike tone feels warm, tender and quietly hopeful, like a small moment of innocence breaking through. It leaves a gentle, smiling impression rather than a loud or dramatic one.