Luffy's unaware Conquerors Haki at Mrineford

Haōshoku Haki (覇王色の覇気) Haoshoku Haki is a rare form of Haki that allows the user to exert their own willpower over others. This type of Haki cannot be attained through training and only one in several million people are born with this ability. It is said that whoever possesses this type of Haki has the qualities of a king, and are known as Supreme Rulers.

Haoshoku Haki is considered an extremely dangerous threat and a highly valuable asset by powerful groups such as the Marine Admirals and the Four Emperors.

Also called: Conqueror's Haki and Kings Haki.