Luffy Using Haki In Marineford Episode -

As Luffy approaches the main battlefield, he senses the presence of Akainu, the ruthless Admiral of the Marine Corps. With his Haki on high alert, Luffy confronts Akainu, exchanging blows and showcasing his impressive combat skills.

Haoshoku Haki (Conqueror's Haki). This was an unconscious manifestation of his "King's" disposition. It was the first time the series confirmed Luffy possessed this rare ability. luffy using haki in marineford episode

Fans often ask: "If Luffy had Conqueror’s Haki at Marineford, why didn't he use it to save Ace?" As Luffy approaches the main battlefield, he senses