Kurogiri is a villain in My Hero Academia, the manga and anime series about heroes in training, and his Quirk, Warp Gate, lets him open portals made of dark purple mist. In the anime, which began in 2016, he uses those gates to move members of the League of Villains across battlefields and to trap heroes. Fans began sharing the distinctive portal sound in edits and soundboards because it instantly signals a teleport, a rescue, or a villain arriving. It remains popular in anime edits and reaction videos for that quick, ominous transition.