Haki is the spiritual power system at the heart of the One Piece anime, and the sound associated with Conqueror's Haki was designed to sell its most dramatic quality: presence alone defeating enemies. Toei Animation's sound team gave the aura a deep booming bass pulse with crackling shockwaves, first heard in episodes where major figures display their overwhelming power. The audio was ripped and re-uploaded by fans, then adopted by editors as shorthand for dominance and aura. It remains a staple of One Piece edit culture and anime power-scaling memes across YouTube and TikTok.