Kamijou Touma is the protagonist of A Certain Magical Index, created by Kazuma Kamachi as a light novel series before its anime adaptations. His right hand, Imagine Breaker, negates magic, esper powers and other supernatural effects on touch, which made him a popular reference in anime fandom. Short clips named after the ability circulated on soundboards and in fan edits during the late 2010s, especially around the third anime season in 2018, and remain shorthand online for instantly cancelling something powerful or unwanted.