Substitution Jutsu, known in Japanese as Kawarimi no Jutsu, is a basic ninjutsu technique from Naruto, the manga by Masashi Kishimoto that began in 1999 and became a long-running anime from 2002. It lets a ninja instantly replace themselves with a nearby object, usually a log, to escape an attack. The sound became a handy shorthand in fan edits and short videos, where it signals a quick escape in the same way as a teleport sound. Alongside other Naruto techniques such as the Mangekyo Sharingan, it remains recognisable to anime fans years after the series first aired.