Which Episode Luffy Use Supreme Haki
The specific episode you are looking for is Episode 1028 of One Piece.
Context: The battle on the Skull Dome rooftop. Luffy, Zoro, Law, Kid, and Killer are fighting Kaido and Big Mom simultaneously. After recovering from his first defeat, Luffy realizes that Kaido's terrifying power doesn't come from physical punches, but from coating his body in Supreme Haki. which episode luffy use supreme haki
The Moment: Around the 18-minute mark of Episode 1028, Luffy stares down Kaido. He stops trying to punch with physical strength. Instead, he channels his willpower into his fist. Black, thick lightning (visually distinct from Armament Haki) begins to coil around his arm without him touching anything. The specific episode you are looking for is
He throws a punch at Kaido. The punch does not touch Kaido’s face. It stops a millimeter away, but the force of the Supreme Haki blasts through Kaido’s skull, causing the Yonko to spit up blood and feel genuine pain for the first time in decades. After recovering from his first defeat, Luffy realizes
Keyword Answer: Yes, Episode 1028 is the episode where Luffy uses "Supreme Haki" in its advanced, offensive form.
It is important to note: Gear 5 (Episode 1071) is not Supreme Haki. Gear 5 is the awakening of Luffy's Devil Fruit (Hito Hito no Mi, Model: Nika). However, Luffy combines Gear 5 with his Advanced Supreme Haki in later episodes (1076+), creating the most powerful version of the character seen to date.
Within the One Piece fandom, the apocryphal term "Supreme King Haki" is frequently used to describe the highest application of Haoshoku Haki. This paper debunks the term's canonical existence while identifying the three distinct narrative and mechanical phases of Luffy's Haoshoku Haki development: Awakening (Episode 399), Advanced Emission (Episode 1071), and the transformative Infusion (Episode 1074). By analyzing specific episodes, manga chapters, and databook statements, we conclude that the closest analogue to "Supreme King Haki" is the Infusion technique, first used by Luffy against Kaido in Episode 1074 ("The Fierce Battle of the Emperors! Luffy vs. Kaido").