The clip draws on Death Note, the anime and manga series centered on a notebook that kills anyone whose name is written in it, and on Ryuk, the shinigami who drops the notebook into the human world. Brazilian fans clipped the dramatic Portuguese description of this death figure and recirculated it as a standalone joke, separate from any single scene. Online, the line now works less as plot dialogue and more as a label, pasted onto gothic outfits, dark edits and mock serious introductions where someone is treated like a ruler of darkness.