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Haki
Structural lore — what Oda has confirmed about this. The Haki system (Observation /
Armament / Conqueror) is forward-canon; @0434 is the naming , not the explanation.
What we know
Recent chapter
Covers a recently released chapter — details may be revised as the story continues.
[!evidence|ch=1165] Ch. 1165 pp. 14–15 — God Valley Haki mechanics: Supreme-King cancel-out + “critical mass”
God Valley Haki mechanics (Ch. 1165 ): Against a foe guarding with Supreme King (Conqueror’s) Haki, an attacker’s own Supreme King “cancels out” the defense — “there’s no damage unless we surpass that” (p. 14). “The Color of Armament is a power that doesn’t yield to the Devil Fruits” (p. 14). To fell cursed Rocks , Roger & Garp resolve to hit him with a “critical mass of Supreme King Haki ,” a strike expected to leave all three “down for the count” (pp. 14–15). Named finishers: Garp’s “Infinitum,” Roger’s “God of Fire: Ace.”
Recent chapter
Covers a recently released chapter — details may be revised as the story continues.
[!evidence|ch=1152] Ch. 1152 p. 4 — Supreme King Haki can “flow out” unconsciously
Gaban on Conqueror’s (“Supreme King”) Haki: it is “a power that’s only useful when you consciously control it,” yet it can be “flowing out of you ” unconsciously — which is how Zoro has been using it without realizing. Multiple Straw Hats carry it (“more than one of you with Supreme King Haki”), and Prince Loki wields it too.
Ch. 1122 pp. 11–17 — pre-stored, time-delayed Haki (the construct Emet unleashes Joy Boy’s stored Conqueror’s Haki)
Ch 1122 introduces the concept of storing/locking Haki inside a body to be released later : in a Void-Century flashback a child “tied a knot of the greatest Haki ” into the construct Emet , to be “untied… only when the time is right ” — when Emet’s life or someone it wishes to protect is in danger (pp.16–17). In the present, Emet unleashes a vast wave of Conqueror’s Haki (“Color of the Supreme King?!”) strong enough to make an attacking Marine fleet and sea-monsters vanish (pp.11–12, 15). First on-page depiction of pre-stored, time-delayed Haki — the mechanism is novel. See Iron Giant Emet , Joy Boy Identity .
Ch. 1014 pp. 2–3 — Kaido grades Luffy’s Conqueror’s-Haki coating
Kaido confirms Luffy “infused [him]self with the color of the Supreme King ” (Conqueror’s/Haoshoku Haki) into his strike, calling the technique “crude and clumsy” yet conceding “your use of it…” — on-page acknowledgement of the advanced Conqueror’s-Haki coating as a real, if immature, capability (the same infused strand graded @1010).
Ch. 1010 pp.10, 13 — Conqueror’s-Haki INFUSION (“color of the Supreme King” coating), the apex application
Chapter title “Color of the Supreme King.” Kaido recognizes that both Zoro (p.10, mid-Asura) and Luffy (p.13) now infuse their attacks with Conqueror’s (Supreme King / Haoshoku) Haki — distinct from raw emission/mass-KO. Kaido names it the apex tier: “you can infuse things… only a handful of the very strongest can!!! ” Zoro does it unconsciously (leaving Kaido a lasting wound, p.10); Luffy figures it out deliberately after taking Kaido’s club, applying Hyogoro’s “power blossoms in the midst of danger” principle (pp.12-13). This is the on-page payoff of the advanced/infused Conqueror’s strand seeded Ch. 924 (Oden’s “special trick”). The three-color taxonomy stays as logged @0597. See Kaido Names Conquerors Haki As Odens Special Trick .
Ch. 947 pp. 6–7 — Hyogoro on the interior register of Armament/Ryuo
Hyogoro distinguishes two registers of Armament/Ryuo: “outward” Haki covers the surface (standard hardening), but a tier beyond penetrates the enemy’s interior and destroys them from the inside , making attacks far more powerful. The same technique can be turned to offense or used defensively as “invisible armor.” Crucially, Luffy already performs it unconsciously — it is how he shattered the sea-prism steel kill-collars from within. The three-color taxonomy stays as logged @0597. Cross-link Advanced Armament Haki Has Levels Of Color , Luffy Strains Against Sea-Prism Cuffs To Grow Stronger In Udon .
Ch. 940 — “Ryuo,” Wano’s word for Haki
Hyogoro names Ryuo (“Flowing Cherry Blossom”) as Wano’s term for Haki and teaches its flowing application: channel the Haki into the fist from the parts of the body that don’t need it (pp. 10–11). Luffy fails repeatedly. Introduces flowing/internal Armament as the next tier above simple hardening. The three-color taxonomy stays as logged @0597. See Advanced Armament Haki Has Levels Of Color .
Ch. 935 pp. 6, 8 — Luffy frames seastone resistance as Haki training; laments he can’t use Haki
In the Udon mines Luffy strains against his sea-prism cuffs as deliberate training — “when these things come off… I’ll be even stronger!!!” (p. 6) — while a warden marvels “his willpower’s simply off the charts.” He laments only that he “can’t use Haki ” (p. 8). Seeds the present-day Wano Haki growth (the advanced Armament / “flowing” Ryuo register is forward). The three-color taxonomy stays as logged @0597. See Luffy Strains Against Sea-Prism Cuffs To Grow Stronger In Udon , Advanced Armament Haki Has Levels Of Color .
Ch. 924 (pp. 5-6) — Conqueror’s Haki = “the color of the Supreme King,” tied to Oden’s “special trick”
The unconscious Luffy involuntarily bursts Conqueror’s (Supreme King / Haoshoku) Haki , felling bystanders. Kaido recognizes “the color of the Supreme King… like Lord Oden ’s special trick” and notes Eustass Kid possesses it too — “we don’t need all of these Supreme Kings running around.” Seeds an advanced form of Conqueror’s Haki (the Haoshoku infusion Oden wielded), distinct from raw emission. The three-color taxonomy stays as logged @0597. See Kaido Names Conquerors Haki As Odens Special Trick .
Ch. 895 pp. 4-8 — advanced Observation Haki (future-sight) under pressure
Katakuri’s advanced Observation Haki lets him predict and dodge attacks, but Luffy ’s Gear-4 Snake-Man — punches that bend/accelerate mid-flight — begins to beat the foresight (“Why did it come from the side?!”). On-page showcase that future-sight reads the intended path, not a path changed after release. The three-color taxonomy stays as logged @0597. Cross-link Mantra Composure Dependence The Precognition Can Be Jammed , Luffy , Charlotte Katakuri .
Ch. 894 p. 4 — the future-sight tier of Observation Haki, stated by Rayleigh (Rusukaina flashback)
In the Rusukaina-training flashback, Silvers Rayleigh teaches that the very mightiest Color-of-Observation Haki (Kenbunshoku) users “can see a little bit into the future” and can “sense the actions another person will take” — “there is a will to every attack” — a level beyond ordinary precognition and beyond what two years of training can reach (p. 4). Establishes the canonical ceiling of Observation Haki that Katakuri already wields and that Luffy is reaching for in the present-day duel. The three-color taxonomy stays as logged @0597. See Luffy Begins To Read Katakuri’s Future-Sight , Rusukaina , Luffy , Charlotte Katakuri .
Ch. 893 pp. 6, 15-16 — two tiers on display (nascent future-sight Observation + dual Conqueror’s Haki)
Two strands of Haki surface in the Luffy–Katakuri duel’s climax. (1) Advanced Observation / Kenbunshoku (future-sight): Luffy begins to perceive a split-second of the future during the standoff — “I think I saw it!” / sensing things “subconsciously” with the Color of Observation, which he dismisses as “imagination” (p. 6) — the on-page emergence of the future-sight tier in a Straw Hat. (2) Conqueror’s (Supreme King / Haoshoku): Luffy and Katakuri release Conqueror’s Haki simultaneously to knock out the interfering spectator gallery (pp. 15-16) — Katakuri’s Conqueror’s Haki confirmed on-page, and the Big Mom crowd registers it “from the monkey too?!” The three-color taxonomy stays as logged @0597. See Luffy Begins To Read Katakuri’s Future-Sight , Luffy , Charlotte Katakuri .
Ch. 892 — p. 16 — “Color of Observation” named; the future-sight tier flagged
Katakuri narrates that Luffy is “getting closer and closer to color of observation [Kenbunshoku Haki]” and that “the unthinkable could happen” if Luffy reaches it — the first on-page framing that advanced Observation Haki can grant a future-reading edge (the basis of Katakuri’s own perfect attack-prediction). Establishes a higher mastery tier of Observation as canon. The three-color taxonomy stays as logged @0597. Cross-link Luffy , Mantra , Luffy Begins To Read Katakuri’s Future-Sight .
Ch. 891 pp. 7-8, 10, 11 — Luffy begins to see the future (advanced Observation reaches a Straw Hat)
Katakuri ’s combat dominance is again framed as advanced Observation Haki / precognition : “This is what happens when I can read your actions ahead of time… there is a will to every attack” (p. 10). Crucially, Luffy begins to see the same future “very infrequently” (pp. 7-8, 11) — the first on-page sign of a Straw Hat reaching the precognitive tier of Observation Haki, with Katakuri visibly unsettled by the changed “light” in Luffy’s eyes. The first demonstration that Observation Haki can extend to seeing slightly into the future by a member of the crew . The three-color taxonomy stays as logged @0597. See Luffy Begins To Read Katakuri’s Future-Sight , Katakuri Future-Sight Observation Haki Predicts Beges Reply .
Ch. 886 pp. 18-19 — Observation Haki attrition & growth (two rules stated in the Luffy–Katakuri duel)
Two rules of Haki are stated on-page during the Mirro-World chase: (1) Observation Haki depletes with sustained use — Luffy prolongs the fight as an attrition strategy, “Haki runs out as you use it” (p. 18); and (2) Haki advances fastest under extreme combat — Katakuri : “the real advancement in Haki happens during extreme use in battle ” (p. 19), even as he dismisses Luffy’s ambition (“Stop dreaming, shrimpy!!!”). The apex framed here is the advanced-Observation future-sight (Luffy : “I wonder if I could also see… a bit of the future”). The three-color taxonomy stays as logged @0597. See Katakuri Future-Sight Observation Haki Predicts Beges Reply , Luffy Begins To Read Katakuri’s Future-Sight .
Ch. 884 pp. 5, 7-9 — advanced Observation (future-sight) is named as the win condition; needs a calm mind
Katakuri ’s advanced Color of Observation (Kenbunshoku) Haki is explicitly framed on-page as seeing the future : Luffy names it as Katakuri’s real edge — “it’s not your mochi powers that are so great… it’s your Color of Observation” — and begins reading/answering attacks a beat ahead himself (pp. 5, 7-9). Katakuri states the future-sight requires a calm mind (“for Observation Haki to work you need to be properly calm”) and that losing his composure broke the precognition and gave Luffy the opening (p. 8) — the first on-page demonstration of a fighter beginning to acquire future-sight mid-battle, and the explicit framing of it as the duel’s win condition. The three-color taxonomy stays as logged @0597. See Katakuri Future-Sight Observation Haki Predicts Beges Reply , Luffy Begins To Read Katakuri’s Future-Sight .
Ch. 883 p. 14 — Armament (“color of Arms”) Haki has graded TIERS
Charlotte Katakuri declares “there are even levels to the color of Armament!! ” as he overpowers Luffy ’s hardened strikes in the Mirro-World duel — the first explicit on-page confirmation that Busoshoku (Armament) Haki is tiered/graded , not binary hardening, and that Katakuri wields a higher grade than Luffy. The advanced-Armament training this opens is forward (Wano); the three-color taxonomy stays as logged @0597. See Advanced Armament Haki Has Levels Of Color , cf. the Ch. 641 “my Haki isn’t good enough yet” developmental tell.
Ch. 883 pp. 8, 15-16 — advanced Observation (future-sight) is defeatable; Luffy begins to read it
Luffy uses Observation Haki to sense Katakuri ’s hidden presence inside his shrine (p. 8), then — once Katakuri’s composure breaks — lands a clean kick Katakuri “didn’t dodge ” (p. 15) and says “I think I’m starting to understand… your powers!” (p. 16). The first crack in Katakuri’s predictive future-sight Observation, and an early step toward Luffy acquiring advanced future-sight Observation himself. The three-color taxonomy stays as logged @0597. See Katakuri Future-Sight Observation Haki Predicts Beges Reply , Luffy Begins To Read Katakuri’s Future-Sight .
Ch. 862 pp. 9, 13-14 — future-sight demonstration (unnamed in this chapter)
Charlotte Katakuri predicts events seconds before they occur — that Pudding will fall to the ground and that Sanji will dodge the assassin’s bullet — “He saw the future!! ” (pp. 9, 13-14). This chapter does NOT name the faculty as Haki/Observation Haki — record as a recurring demonstration of seeing into the future (the faculty is already established earlier in the arc Ch. 860 ; do NOT mark 0862 as its first demonstration). The Haki system/taxonomy stays as logged @0597. See Katakuri Future-Sight Observation Haki Predicts Beges Reply .
Ch. 797 — pp. 10-11 — selective, conscious-target Conqueror’s (Supreme King) Haki
Luffy fells a Marine special sniper squad with a burst of Conqueror’s (Supreme King / Haoshoku) Haki , and the survivors note the targets remain conscious — an example of controlled, selective offensive Conqueror’s Haki (knock out the threats without a full mass-incapacitation), consistent with his post-Gear-4 growth in Haki mastery. The Haki system/taxonomy stays as logged @0597. Cross-link Luffy .
Ch. 786 — pp. 13–14 — Armament Haki has a post-Gear-Fourth cooldown
Luffy states that after using his Gear Fourth form “Bounce-Man” he cannot use Haki for ten minutes — the first explicit on-page cost framing Haki as a depletable resource with a recovery window, which forces the gladiators to buy him time for the rest of the arc climax. The Haki system/taxonomy stays as logged @0597. Cross-link Gomu Gomu no Mi , Gear Fourth Boundman Has A Strict Time Limit And Post-Use Cost .
Ch. 782 — pp. 2–4 — Luffy’s Conqueror’s Haki collides with Doflamingo’s (mass KO)
Luffy charges Doflamingo and their wills collide in what onlookers name “a collision of Supreme King Haki ” — every weak-willed bystander on the plateau passes out. First on-page demonstration of Luffy’s Conqueror’s (Supreme King) Haki on Dressrosa. Bellamy : “Does he have that too ?!”; another names it “the color of the Supreme King Haki .” Doflamingo reads it as proof Luffy “was chosen by the heavens … it’s a sign that you have the quality of a King .” The Haki system/taxonomy stays as logged @0597. Cross-link Luffy , Doflamingo .
Ch. 725 — p. 12 — Observation Haki used defensively by a non-combatant gladiator
Rebecca wins every Corrida Colosseum match without ever striking back, using Color of Observation Haki (Kenbunshoku) to read and dodge her opponents’ attacks (“she’s never taken a single blow”) and redirect their force into out-of-bounds throws. A non-combatant application of the Observation strand — perception/evasion without a return blow. The Haki system/taxonomy stays as logged @0597. Cross-link Rebecca .
Ch. 716 — p. 18 — a Garp-era legend wields Conqueror’s Haki
Narration calls the clash between Chin Jao ’s drill-head charge and Luffy ’s punch “a collision of Supreme King Haki ” (p. 18); the burst flattens most of Block C, leaving “just two” standing. A second elderly underworld legend is shown to carry Conqueror’s Haki, reinforcing it as the mark of the world’s apex fighters. The Haki system/taxonomy stays forward-canon.
Ch. 698 — pp. 6–7 — mass-knockout Conqueror’s Haki (“Haki of the Supreme King”) by a Warlord
Doflamingo wipes out the entire G-5 unit with a single burst of Conqueror’s Haki — a marine names it “Haki of the Supreme King ” (pp. 6–7). A clean on-page demonstration of mass-knockout Conqueror’s Haki wielded by a Warlord (no visible blow; all of G-5, incl. Smoker and Tashigi , drop). The Haki system/taxonomy stays forward-canon. Cross-link Doflamingo , Smoker .
Ch. 690 — pp. 9–10, 15–16 — Armament-Haki showcase (Vergo); two Logia-counter rules
Armament Haki showcase (Vergo ). Vergo clads a plain bamboo staff in Haki to make it “a formidable weapon” (technique “Demon Bamboo” ) and, on p. 16, sheathes his entire body in jet-black Armament Haki. Two explicit Logia-counter rules are stated: against superior Haki a Logia’s expansion “only makes for a bigger target” (vs Smoker ’s smoke, p. 9), and a Haki-hardened body is immune to Law ’s severing powers (p. 15). Luffy also hardens his fist with Armament Haki to finish Caesar (“Spin spin!”, p. 5). The Haki system/taxonomy stays forward-canon.
Ch. 645 pp. 2, 9: Armament Haki hardening on Gear Third (post-timeskip). Luffy ’s fist is shown black-coated as he strikes Hody (“my fangs are not for show, Straw Hat” ) and lands Elephant Gun / Elephant Gatling — Busoshoku (Armament) Haki hardening combined with Gear Third. The Haki system/taxonomy stays forward-canon.
Ch. 634 pp. 15–17: First post-timeskip mass-scale deliberate Conqueror’s Haki by Luffy . A single will-burst (“OM!!!” ) drops 50,000 of 100,000 New Fish-Man Pirates with no visible blow. Zoro names it on-page — “This is… Haki!” — noting Luffy can do it “after only two years of training”; an ally names the strand “the color of the Supreme King.” The Conqueror strand is now a controlled mass weapon, not the unconscious presence-KO of @0495/@0519/@0569.
Ch. 434 p. 5: First explicit on-page naming of Haki — “His Haki power is overwhelming.”
Ch. 434 p. 7: “you bare your Haki power without constraint” — named again in the Shanks↔Whitebeard exchange.
Ch. 434 pp. 4-6: Shown as an overwhelming force of presence/will — weak-willed pirates collapse merely from being near Shanks or Whitebeard (the on-page debut behaviour of what is later termed Conqueror’s Haki ).
Ch. 434 pp. 16-17: When the two top-tier users release it in disagreement, it physically “splits the heavens / splits the clouds” over the sea — first top-tier Haki clash.
Ch. 495 pp. 16-17: First on-page (unconscious) use by Luffy of the Conqueror’s-Haki effect — he halts and knocks the charging bull Motobaro unconscious without touching it; observers note nothing visible happened (Robin : “I didn’t see him do anything”). Naming/explanation still forward-canon. See Luffy Knocks Out Motobaro Without A Touch Conquerors Haki Precursor .
Ch. 500 pp. 18-19: First on-page deliberate, named, targeted Haki knockout — Silvers Rayleigh silently drops the auctioneer Disco with no visible blow when Disco moves to kick the caged Camie ; onlookers name the force “that ‘Haki.’” (Distinct from Luffy ’s unconscious Conqueror’s-precursor KO of Motobaro Ch. 495 ; the Haki system itself is still unexplained.) See Silvers Rayleigh Dark King Roger First Mate Debut .
Ch. 503 pp. 18-19: First crowd-scale demonstration of the unexplained felling-force. The auctioned old man “Rayleigh” drops a large swath of the auction-house audience unconscious with no visible attack (“PLOP… PLOP” ); bystanders ask “Why…?! What did he do?!” The same wordless, will-based phenomenon — here at crowd scale, as he intervenes to save Camie — that the series later formalizes as Haki (Conqueror-class). Not named on-page; recorded as the precursor demonstration. See Rayleighs Unexplained Crowd-Dropping Force .
Ch. 504 p. 11: The crowd-felling force Rayleigh used on the auction hall (Ch. 503 ) is named “Haki” on-page by Chopper — “That thing he used is called ‘Haki,’ I think. I don’t really understand it either.” The presence-that-knocks-out-the-weak-willed (the later-formalized Conqueror’s Haki) is now labeled, though the system itself is left unexplained. See Rayleighs Unexplained Crowd-Dropping Force .
Ch. 511 — Armament-Haki precursor tells (distinct from the Conqueror’s-presence tells above)
Two non-fruit / cross-fruit power tells. Sentomaru , “not a devil fruit user,” lands a “Sumo Strike” that hurts rubber-Luffy — “there’s something weird about his attacks” (p. 14). Rayleigh catches the light-Logia Kizaru ’s kick barehanded (pp. 18-19). Both affect bodies a normal attack cannot — rubber and intangible light — the later-formalized Armament (Busoshoku) Haki shown without naming. The Haki system/taxonomy stays forward-canon. See Armament Haki Precursor Rayleigh Touches A Logia And Sentomaru Hits Without A Fruit .
Ch. 512 pp. 13-14: Sentomaru ’s blunt “Sumo Strike” again injures the rubber-bodied Luffy — “Why are his blunt strikes working on Luffy? He’s supposed to be made of rubber!!” A will-imbued blunt blow that bypasses rubber’s velocity-rebound — the on-page precursor to Armament (Busoshoku) Haki , distinct from the Conqueror’s-presence strand. Not named “Haki” on-page here. See Sentomaru Blunt Strikes Hurt Rubber Luffy Armament-Haki Precursor .
Ch. 518 — Haki referenced as common knowledge among Grand Line warriors
The Kuja are stunned that Luffy felled the panther Bacura with one punch: “He didn’t use any Haki ! He did it by brute strength alone?!” (p. 15). Establishes Haki as an expected combat tool among Grand Line warriors — and that Luffy, at this point, does NOT use it. The Haki system/taxonomy stays forward-canon; record only the on-page naming.
Ch. 519 — “Haki” given a working definition + first naming of the Conqueror’s (“Supreme King”) strand
pp. 10, 12: the Gorgon Sisters Sandersonia & Marigold use Haki to read and predict Luffy ’s movements (“with the power of Sandersonia’s Haki, she can dodge anything”; “they’re reading all my moves”). Luffy is told he “doesn’t know how to use Haki… that’s true of most people from the outer oceans. That’s why they’re so weak” — the first on-page framing of Haki as a trainable perception skill (the later-formalized Observation strand), distinct from the @0434 presence-naming.
pp. 18-19: first on-page naming of the Conqueror’s strand. Luffy’s involuntary will-burst drops the surrounding Kuja warriors unconscious; the crowd names it “the Haki of the Supreme King” (覇王色 territory, not spelled on-page), held by “the chosen ones — only one in millions,” and names Hancock as the only previously-known wielder (“he’s like me… the Supreme King Haki?!”). Luffy is called a “natural born king” who “hasn’t learned to control it yet.” This is the on-page naming + ‘mark of kings’ explanation of the Conqueror’s strand; the formal “Haoshoku Haki” term and the three-category system remain forward-canon.
Ch. 520 — Haki treated as common knowledge among the Kuja
p. 4: The Kuja audience misread Luffy ’s Gear Second steam as Haki — “Even a Haki like that means nothing if he can’t control it!!” Another on-page use of the term at Amazon Lily , where the all-female warrior people treat Haki as everyday combat vocabulary — quiet setup that Luffy’s later Haki education originates from this island/its people. The Haki system/taxonomy stays forward-canon; record only the on-page naming.
Ch. 567 p. 5 — “pure Haki” strikes an intangible Logia (Armament precursor)
“He stabbed him with pure Haki!!” — Whitebeard lands a strike on Aokiji ’s intangible Logia body. An on-page demonstration that “pure Haki” (the Armament register, unnamed as such here) can bite a Logia directly — a mechanic foregrounded before Haki is formally systematized. Cf. the Ch. 511 Rayleigh-catches-Kizaru / Sentomaru-hits-rubber-Luffy Armament precursor tells. The Haki system/taxonomy stays forward-canon; record only the on-page demonstration.
Ch. 570 — the Conqueror’s (“Supreme King”) strand detonates at war-crowd scale and is openly attributed to innate birthright
Luffy ’s involuntary will-burst fells a huge swath of the Marineford combatants; survivors name it on-page: “He has the Haki of the Supreme King!! He’s like Pops and Shanks!! ” (p. 2). Garp privately registers it as inherited: “So you really were born with it … You too, Luffy” and “he did it instinctively … there’s a scary power hidden deep inside that kid” (p. 2) — echoing Roger. The marines tie the power to lineage (son of Dragon ) and to charisma (“that explains why people are so drawn to him,” p. 4). This is the @0519 “Supreme King Haki… hasn’t learned to control it yet” naming paid off at battlefield scale; the three-category system + “Haoshoku” term stay forward-canon. See Haki First Named And Conquerors Presence Demonstrated , Luffy Knocks Out Motobaro Without A Touch Conquerors Haki Precursor .
Ch. 574 p. 7 — Armament Haki lets a fighter strike (and be struck by) a Logia body
Akainu repels the logia Marco and the swordsman Vista , calling them “you Haki users… can be such a handful” — reaffirming that Armament Haki bypasses Logia/elemental intangibility and lets a Haki-wielder strike (and be struck by) a Logia body. Cf. the Ch. 567 Whitebeard “pure Haki” strike on Aokiji. The Haki system/taxonomy stays forward-canon; record only the on-page demonstration.
Ch. 579 p. 7 — Koby unconsciously perceives the dying (Observation-Haki precursor)
Koby unconsciously perceives every nearby death at Marineford — “the voices in my head are disappearing, one by one” — an early, untrained Observation-Haki manifestation (inference ; the ability is not named on-page here). Joins the precursor cluster (Zoro hearing breathing; the Skypiea Mantra ; the Ch. 511 Rayleigh/Sentomaru armament tells). The Haki system/taxonomy stays forward-canon; record only the on-page beat. See Koby Hears The Dying And Shanks Marks His Few Seconds Of Courage .
Ch. 594 p. 7 — Haki reframed as standard senior-Marine equipment; Koby’s Observation strand named
A Navy doctor states all naval officers of Vice Admiral rank and higher “have some form of it,” normally drawn out through years of training (p. 7) — the first institutional/Marine framing of Haki. Koby ’s Marineford “the voices in my head are disappearing” precursor (Ch. 579 ) is here diagnosed as awakened Observation Haki , shock-triggered: “I feel the presence of everyone around me so strongly… it’s unnerving.” The “feel the presence of everyone around me” sense is named as the canonical descriptor the earlier Mantra/Observation precursors anticipated. The three-category system + formal “Kenbunshoku” term stay forward-canon; record only the on-page naming. See Koby Hears The Dying And Shanks Marks His Few Seconds Of Courage .
Ch. 597 — Rayleigh’s first systematic explanation of the Haki SYSTEM (the three “colors”)
On Rusukaina , Silvers Rayleigh formally teaches Luffy the Haki taxonomy (pp. 12–18):
Observation Haki (“color of Observation”) — acutely sense an opponent; read the location, number, and movements of enemies you cannot see. “They call this power Mantra in the Sky Island of Skypiea” (p. 13) — the explicit on-page equation of Mantra with Observation Haki.
Armament Haki (“color of Arms”) — “an invisible suit of armor” that can also be used as a weapon; the only counter-measure (besides hitting weak points) effective against Logia / Devil-Fruit users (pp. 13–15). Lets one strike intangible Logia bodies — explicitly referencing Aokiji , “Smoky” , and how Rayleigh hit Kizaru ; the Kuja imbue their bows/arrows with it.
Conqueror’s Haki (“color of the Supreme King”) — possessed only by those who would stand above others; overwhelms the weak-willed without a touch. Cannot be trained directly — grows only as the user’s spirit grows; “the embodiment of the spirit of the user.” Luffy already awakened it (“what you did at the auction house,” pp. 16–18).
A rare “third form of Haki” is teased (p. 15) and resolved within the chapter as the Supreme King color. This chapter is the naming-and-explanation that pays off every prior precursor tell logged above (Mantra, Armament, Conqueror’s).
Ch. 601 p. 14 — first post-timeskip Haki showcase (now a baseline combat tool)
Luffy ’s Gear Two “Jet Pistol” downs a Pacifista in one hit and a Marine confirms “He used Haki!” — Rayleigh’s two-year Haki tutelage on Rusukaina (the @0597 three-colors lecture) is now a baseline combat tool, raising Luffy’s power floor for the New World. Cross-link Silvers Rayleigh .
Ch. 605 pp. 11, 14 — first in-action use of trained Armament (“Color of Arms — Hardening”)
Luffy names “Color of Arms — Hardening” (VIZ for Busōshoku / Armament Haki) and applies it to a Gear Third fist underwater before knocking out the deep-sea Kraken (Surume ) with Elephant Gun (pp. 11, 14) — the first clean, deliberate in-action use of the hardening application of the trained post-timeskip Armament Haki Silvers Rayleigh drilled into him on Rusukaina (Ch. 597 ). The armor-hardening of a body part is shown in present-day combat for the first time; the three-color taxonomy stays as logged @0597. Pairs with the Ch. 601 Gear-Two “Jet Pistol” Haki tell as the post-timeskip Armament showcase.
Volume 61 SBS (printed in
Ch. 606 p. 18) — Mantra = Observation Haki
Oda confirms (out-of-story) that Skypiea’s “Mantra” is the same phenomenon as Haki — specifically Observation/Kenbunshoku Haki — citing Rayleigh’s volume-61 explanation: different countries name the same power differently. Complements the in-story Ch. 597 Rayleigh equation. technique/sbs-leak Cross-link Mantra .
Ch. 609 page 16 — Luffy quells a sea beast without a blow
Post-timeskip, Luffy makes a charging sea beast whimper and surrender simply by facing it (“the sea beast gave up without a fight”). An understated display of intimidation / Conqueror’s-tier presence over animals — recorded as a precursor beat, not a named on-page use (the system stays as logged @0597). Cf. the Ch. 495 Motobaro KO (the charging bull halted without a touch). See Luffy Subdues A Sea Beast Without A Fight .
Ch. 637 pp. 3-6 — post-timeskip Armament + Observation in the Hody fight
Luffy demonstrates post-timeskip Haki in the Hody fight. Armament Haki (Busoshoku): hardens his head to a steel-shattering headbutt — “Head Armament! Gum-Gum… Bell !!!” (pp. 3-4: “He destroyed steel with his head!!”). Observation Haki (Kenbunshoku): dodges Hody ’s Shark Arrows by sensing them — “It’s like he can sense them coming!!” (p. 6). On-page evidence of the Haki training that the two-year timeskip forged (Silvers Rayleigh ’s Ch. 597 three-colors tutelage). The three-color taxonomy stays as logged @0597.
Ch. 641 pp. 7-8 — Armament hardening resists blows but is not (yet) raw destructive force
Post-timeskip Luffy coats his teeth in Armament Haki and bites the ark Noah (“CHOMP!!”) but cannot break it: “Armament Haki is tough against blows, but my Haki isn’t good enough to stop stuff like this yet.” On-page statement that hardening Haki resists blows but is not (yet) a substitute for raw destructive force, and that Luffy’s Armament is still developing. The three-color taxonomy stays as logged @0597.
Ch. 642 p. 20 (Vol-64 SBS) — Conqueror’s Haki magnitude + selective sparing
Oda canon on Conqueror’s Haki (Haki of the Supreme King) : in Luffy ’s exact situation, Shanks and Rayleigh could knock out roughly 100,000 ; a KO-by-Haki only occurs when the user is overwhelmingly stronger than the target (it measures how many opponents “weren’t even worth fighting” ), and a trained user can selectively spare chosen people from the effect. technique/sbs-leak .
Armament Haki “only gives you the ability to interact with the ‘body’ of the Logia” and “doesn’t actually sap the opponent’s ability to USE his powers” — distinct from the sea or the energy from Seastone (Sea Prism Stone). It lets you strike/grab a Logia, but the user can still re-disperse into their element. (Demonstrated against Caesar Clown ’s Gas-Gas Fruit .) The three-color taxonomy stays as logged @0597.
Chronology / structure
The concept is named but not yet explained at Ch. 434 — a long-game seed for the
Haki system that Oda formalizes far forward (post-timeskip). The categories
(Observation / Color of Observation, Armament, Conqueror’s) are NOT on-page here.
Open questions about this topic
What exactly is Haki, and how does it let two men split the sky? (Raised on-page @0434; system forward.)
Is Haki the same force as the Skypiea Mantra ? The collapse-from-presence and
the Observation-Mantra are thematically adjacent, but the Mantra=Haki link is NOT made on-page @0434 — record only the naming.
What distinguishes the rare “Supreme King” strand (“one in millions”), and how is it controlled? (Raised @0519; mastery forward.)
Cross-links