The clip circulates online under the short name Kurumi Angel, and its appeal comes largely from that recognisable pairing rather than a long documented history. Short anime sounds like this tend to travel through fan edits, reaction videos, and soundboards, where a brief, memorable moment is lifted out of context and given a second life as a reusable cue. With a runtime of under two seconds, it fits the fast pace of short-form video, where creators need an instant mood shift without a long intro. That compact, shareable format is why it continues to appear in new edits.