The Sharingan is a dojutsu from Masashi Kishimoto's Naruto manga and anime series, most closely linked to the Uchiha clan and characters like Sasuke and Kakashi. Its spinning tomoe and red iris became one of anime's most recognisable power symbols, later evolving into the Mangekyo Sharingan. Short activation sounds clipped from episodes and games spread through anime edit communities and soundboards, where the effect is now reused far beyond Naruto scenes to signal focus, prediction or an overwhelming power gap in a confrontation.