This clip circulates online as a short anime-style meme sound, shared on soundboards and reused in fan edits rather than as a long song or dialogue scene. The repeated kuru kuru gives it an instantly recognisable hook, while darling adds a teasing, affectionate twist that creators can drop over almost any cute or flustered reaction. Because it is only a few seconds long and easy to recognise, it keeps appearing in short-form edits, reaction compilations and character showcases, where a quick burst of playful energy matters more than context.