Haki is the passive power system in Sailor Piece that pushes your combat stats well past their base ceiling. There are three types to unlock, each tied to a different trainer, currency cost, and set of conditions. Together they raise your damage, give you free dodges, and become close to mandatory once you reach world bosses and late-game content.
Quick answer: Buy Observation Haki on Desert Island (250,000 Cash + 300 Gems), unlock Armament Haki on Snow Island (250,000 Cash + 250 Gems + a Combat questline), then unlock Conqueror Haki at Shibuya Station after reaching Armament Lv 40, Observation Lv 25, Ascension Lv 5, and holding 1 Conqueror Fragment.
All three Sailor Piece Haki types compared
| Haki | Location | Cost | Max level | Max effect |
|---|---|---|---|---|
| Observation | Desert Island | 250,000 Cash + 300 Gems | 50 | 10 auto-dodges |
| Armament | Snow Island | 250,000 Cash + 250 Gems + quest | 100 | +75% damage |
| Conqueror | Shibuya Station | 1 Conqueror Fragment + prerequisites | 35 | +35% permanent damage |
The recommended order is Observation first, then Armament, then Conqueror. Observation is the cheapest and keeps you alive during early boss fights, while Armament and Conqueror are the two damage multipliers that stack on top of your base stats.
How to get Observation Haki
Observation Haki is the easiest to obtain because it has no questline. Travel to Desert Island and find the Observation Haki Trainer near the Quest NPC, on the eastern side of the island close to the NPC in a lion suit. Walk up the building’s stairs to reach her.
You start with 5 dodges and gain 1 extra dodge every 10 levels, reaching a maximum of 10 dodges at level 50. After activating it, check the on-screen counter to see how many dodges and how much cooldown remain.
How to get Armament Haki
Armament Haki is your core damage boost. Head to Snow Island and find the Haki Trainer at the back of the island. From the teleporter, walk straight behind the mobs (behind the NPCs who handle Artifacts) or air-jump to the rear section to reach her.
Armament works as a passive boost you must switch on each time you launch the game. It grants +25% damage at the base level and adds +0.5% per level, reaching +75% damage at the max level of 100.
Note: Finishing the Armament questline is required before the Conqueror Haki path opens, so do not skip it.
How to get Conqueror Haki
Conqueror Haki is the strongest and the hardest to unlock, sitting firmly in end-game territory. Teleport to Shibuya Station and locate the tallest building, next to the smaller building with the green and red billboards. Climb to the back of that tall building to find the Conqueror Haki Trainer.
Conqueror Haki prerequisites
Before the trainer hands over the quest, you must meet every condition below. The Conqueror Fragment is a Mythical drop that can come from any NPC, with a higher chance from tankier high-level enemies.
- Armament Haki level 40
- Observation Haki level 25
- Ascension level 5
- 1 Conqueror Fragment
Conqueror Haki quest tasks
Once you hand over the fragment and meet the requirements, work through the four objectives below, then return to the trainer to claim the Haki.
- Defeat 500 NPCs with Armament Haki active
- Dodge 500 attacks with Observation Haki active
- Defeat 200 bosses
- Complete 25 dungeons
Conqueror Haki works as a permanent passive once unlocked, so it activates automatically without a manual key press. It adds +1% damage per level and caps at level 35 for +35% permanent damage. The cap was raised from 25 to 35 in the Massive Update on March 25, 2026, so older guides listing +25% are out of date.
How to level up each Haki
Every Haki gains experience just by being used in combat, but each one tracks a different action. Keep the relevant Haki active while you grind so the experience actually counts.
| Haki | XP source | To reach max level |
|---|---|---|
| Observation | 1 XP per dodge | 3,250 dodges (Lv 50) |
| Armament | 1 XP per NPC kill | 15,000 kills (Lv 100) |
| Conqueror | 1 XP per NPC kill | 7,243 kills (Lv 35) |
For Observation, let weak enemies hit you while the Haki is on so you bank dodges instead of one-shotting them. For Armament and Conqueror, farm fast-clearing mobs with a strong AoE fruit and a good build to rack up kills quickly.
How to change Haki color
Haki color is purely cosmetic and only affects the particle effect on Armament Haki. It does not change any stats. You reroll the color using Haki Color Reroll items, which drop from world bosses and mini bosses, and can occasionally come from active codes. World bosses have around a 30% drop chance, while mini bosses sit closer to 2–3%.
Each reroll picks one color at random. The ten standard colors share equal odds, and Rainbow is the rare secret result.
| Color | Reroll chance |
|---|---|
| Red, Pink, Blue, Light Blue, Green, Yellow, Purple, Black, White, Brown | 9.9% each |
| Rainbow (secret) | 1% |
How to use Haki and check your levels
You never need to equip a Haki. Each one is added to your kit automatically once unlocked. Press G for Armament and H for Observation, while Conqueror runs on its own. If you do not want to press buttons, open Settings, go to Auto Skill Settings, and turn on Auto Haki Settings.
To confirm a Haki unlocked and to track its level, open the Stats menu and click the question-mark icon near your character portrait. It shows your current Observation and Armament levels, and the game flashes an on-screen notification each time a Haki ranks up. If an unlock did not register, the most common cause is an unfinished quest objective or an unmet prerequisite, such as missing the Conqueror Fragment or being short on the required Armament and Observation levels.
Stacked together at max, Armament’s +75% and Conqueror’s +35% turn Haki into the single biggest damage source in your build, which is why most players treat unlocking all three as a core progression goal rather than an optional extra.
