Call of the Witch comes from Re:Zero - Starting Life in Another World, the anime adaptation of the light novel series. Fans associate it with the series' darker supernatural moments, which helped the track become one of the most recognizable ominous cues in anime circles. Short uploads, edits and reaction clips spread it across video platforms, where it is often used as shorthand for danger, dread or a cursed atmosphere. Its staying power comes from how quickly it transforms an otherwise normal scene into something deeply uneasy.