Haoshoku Haki, also known as Conqueror's Haki, is a special ability in the One Piece universe. It allows the user to exert their willpower over others, intimidating or even incapacitating weaker-willed individuals. This form of Haki is rare and cannot be gained through training; it is an innate trait possessed by certain individuals. Users of Haoshoku Haki can influence large groups, causing them to lose consciousness or feel fear. Notable characters with this ability include Monkey D. Luffy and Gol D. Roger. It is one of three main types of Haki, alongside Kenbunshoku Haki and Busoshoku Haki.