Ichigo Kurosaki is the central character of Bleach, the long-running manga and anime series in which an ordinary teenager gains the powers of a Soul Reaper. Henshin is the Japanese word for transformation, and clips labelled with it are shared by anime fans as shorthand for a sudden power-up. On soundboards, the short clip circulates alongside other anime transformation and reaction sounds, where editors reuse it for reveals, battles and parody edits. Its appeal is simple: the name alone tells Bleach fans exactly which moment is coming.