Ryomen Sukuna is the King of Curses and the main antagonist of Jujutsu Kaisen, the manga by Gege Akutami that was adapted into a popular anime series in 2020. As a ruthless ancient sorcerer sealed inside Yuji Itadori, his cold amusement became one of his most recognisable traits. Short clips of his laugh spread through anime edits and short-form fan videos, where creators use it as shorthand for arrogance and menace. It remains popular because it instantly signals a villain who is enjoying the moment.