The cue comes from JoJo's Bizarre Adventure, where episodes end with a To Be Continued arrow over a frozen dramatic moment while Roundabout by the band Yes plays. Fans began copying that exact ending for their own videos, turning an anime episode closer into a classic meme ending for a cliffhanger. As short-form editing grew, the riff became shorthand for stopping at the most dramatic point, because viewers already recognise the joke from the show. It still works today because the cut promises a sequel, even when none is planned.