Haki is the combat progression layer that changes dodging, damage, and late-game scaling in Sailor Piece. Observation helps avoid hits, Armament adds damage, and Conqueror's Haki is the gated endgame damage unlock.
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First defensive unlock
Observation Haki is the dodge layer. It starts with a limited dodge count and scales toward its max, so it is the first Haki to understand before harder bosses punish missed movement.
Observation Haki
The first Haki players typically acquire. Observation Haki starts with 5 dodges and adds +1 dodge per 10 levels, reaching a maximum of 10 dodges at Level 50. Purchased from the Observation Master NPC on Desert Island for 250,000 Cash and 300 Gems.
- Rarity
- -
- tier
- S
- role
- Dodge layer
- unlock route
- Observation Master on Desert Island
- requirements
- 250,000 Cash and 300 Gems
- max level
- 50
- max effect
- 10 dodges
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Main damage unlock
Armament Haki is the main damage layer. Its Snow Island quest and level scaling matter because the damage boost grows as players keep fighting with it active.
Armament Haki
The core offensive Haki of the game. Armament Haki increases damage by 25% at the base level, scaling to +75% damage at max level 100 (each level adds +0.5%). Unlocked via the Haki Master NPC on Snow Island, the questline requires defeating 150 NPCs, hitting 65 Z-key attacks, and landing 750 punches.
- Rarity
- -
- tier
- S+
- role
- Damage layer
- unlock route
- Haki Master on Snow Island
- requirements
- Defeat 150 NPCs, hit 65 Z-key attacks, and land 750 punches
- max level
- 100
- max effect
- +75% damage
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Endgame Haki unlock
Conqueror's Haki is the late-game gate. It depends on prior Haki levels, Ascension progress, and a Conqueror Fragment, then adds permanent damage as it levels.
Conqueror's Haki
The rarest and most prestigious Haki. Conqueror's Haki grants a permanent +1% damage increase per level (max 35 levels = +35% total damage as of Massive Update March 25, 2026, raised from 25). Unlocked from the Conqueror Haki Trainer NPC on Shibuya Station. Prerequisites: Armament Haki Lv 40 + Observation Haki Lv 25 + Ascension Lv 5 + 1 Conqueror Fragment.
- Rarity
- rare
- tier
- S+
- role
- Permanent damage layer
- unlock route
- Conqueror Haki Trainer on Shibuya Station
- requirements
- Armament Lv. 40, Observation Lv. 25, Ascension Lv. 5, and 1 Conqueror Fragment
- max level
- 35
- max effect
- +35% permanent damage
Haki progression has a natural order
Observation comes first for many players because dodges make harder fights less punishing. Armament is the main damage upgrade and should become a priority once the Snow Island quest is reachable. Conqueror's Haki comes later because it asks for previous Haki levels, Ascension progress, and a fragment.
Leveling turns unlocks into real power
Buying or unlocking Haki is only the start. Observation scales toward more dodges, Armament scales toward a larger damage boost, and Conqueror's Haki adds permanent damage as it levels. Keep the right Haki active during combat so the unlock can grow into its listed max effect.
FAQ
Which Haki should I unlock first in Sailor Piece?
Observation Haki is usually the first defensive unlock, while Armament Haki becomes the main damage priority once the Snow Island quest is reachable.
What does Armament Haki do?
Armament Haki adds damage and scales with levels. It goes up to level 100, for a max effect of +75% damage.
How do you unlock Conqueror's Haki?
Conqueror's Haki is listed behind Armament Lv. 40, Observation Lv. 25, Ascension Lv. 5, and 1 Conqueror Fragment.
How does Haki level up?
Haki levels up through combat use while it is active. Exact behavior can change with updates, so check the max level before planning a long grind.
