Haki can be used to sense people’s spiritual energy and predict their actions (Observation Haki), give the user a protective coating of spiritual energy (Armament Haki), and, for a certain group of chosen ones, overpower the willpower of others (Conqueror’s Haki). "The Four Emperors" is the first collection of Haki NFTs containing 1001 unique hand-drawn paintings. Each NFT is unique and exclusive based on dozens of traits and rarity levels. Owning a Haki NFT gets you into exclusive places in the ecosystem.