Place it near the end of a short pet edit, just after the cat first appears, then follow it with Anime Wow for a bigger reaction and a Bell Ding to close the moment cleanly.
关于此声音
This short clip repeats a soft, rolling koro koro koro sound like a gentle purr, lasting just over a second and a half. Its warm, rhythmic murmur feels cozy and playful, the kind of small noise that makes a moment feel lighter and more affectionate without saying anything at all.