10 Naruto Characters Who Would Have Insane Haki in One Piece

Haki is one of the two main power systems in One Piece. It is an individual’s spiritual power, and it can be manifested with willpower. Once a person learns to use Haki, they can refine and master it by battling strong opponents. A person’s Haki heavily relies on their willpower as well. Those who falter easily have weaker Haki, and those who are steadfast have more potent Haki.