Ragyo Kiryuin is the main antagonist of Kill la Kill, the 2013 anime series from Studio Trigger, and this music is associated with her appearances as the ruthless head of the REVOCS Corporation and mother of Ryuko and Satsuki. As clips from the series circulated in anime edits, AMVs and meme videos, the theme became shorthand for an unstoppable, elegant villain. It remains popular because it needs no context: even viewers who have never watched the show recognise the rising tension as a cue that someone formidable has arrived.