This clip is taken from the intro portion of “Lost in Paradise,” the ending theme tied to Jujutsu Kaisen. Online, short segments of the song became popular in anime edits, short-form videos, and character showcase posts because the opening bars are instantly recognizable and easy to cut on rhythm. Even in a very short duration, the sound signals a polished anime vibe, which is why creators still use it for quick intros, reveal edits, and transitions built around cool or confident moments.