Place it as the reply beat right after the request in your edit, then follow it with kids cheering once the help has worked, so the sequence moves from asking to agreeing to celebrating.
Über diesen Sound
This is a short spoken line, lasting about 1.7 seconds, in which a voice offers help in a warm, willing tone. It feels friendly and reassuring, like a cheerful yes to a request, and it lands as a light, good-natured reply rather than a dramatic moment.