To get Armament Haki in Haze Seas, reach level 350, save 100,000 Money, go to Logue Town, buy Buso from Old Man Silver, then press J to activate it.
Armament Haki, also called Buso or Busoshoku Haki, is the offensive Haki you buy rather than find, and the whole unlock comes down to hitting a level gate and having the cash ready. There is no drop and no quest chain to grind, so the moment you meet the requirements you can walk in, pay, and have it. This guide covers the exact route, how to switch it on, and what the Level 2 upgrade asks for later.
- Armament Haki requirements and what Buso does
- How to get Armament Haki from Old Man Silver in Haze Seas
- Activating Buso and using it in fights
- Upgrading to Buso Level 2 at Revolutionary Island
- Mistakes that block your Buso unlock
- Observation Haki and movement skills to chase next
- Frequently Asked Questions
Armament Haki requirements and what Buso does
| Requirement | Value |
|---|---|
| Level | 350 |
| Cost | 100,000 Money |
| Trainer | Old Man Silver |
| Location | Logue Town |
| Activation key | J |
| Level 1 effect | +5% Sword and Combat damage; hits Elemental users |
That effect is what makes Buso the priority Haki for anyone fighting Logia-style enemies — without it, your strikes pass straight through them. Some menus label the trainer’s stop as Logue City, but it is the same Buso Trainer location either way.
How to get Armament Haki from Old Man Silver in Haze Seas
Once you are level 350 with the Money ready, the unlock is a short trip to one NPC and a single purchase.
STEP 1/5
Reach level 350

Grind quests and bosses until your character hits the level 350 gate that Buso requires.
STEP 2/5
Save 100,000 Money

Bank the full 100,000 Money so you can buy it the moment you arrive.
STEP 3/5
Travel to Logue Town

Head over to Logue Town, the island where the Buso Trainer is located.
STEP 4/5
Talk to Old Man Silver

Find the Old Man Silver NPC in Logue Town and open his dialogue.
STEP 5/5
Buy Armament Haki

Purchase Armament Haki from him for 100,000 Money to add Buso to your abilities.
Have all 100,000 Money saved before you reach level 350 so you can buy Buso in the same trip instead of sailing back to grind cash.
Video help
Activating Buso and using it in fights

Buying it does not turn it on — you activate Armament Haki by pressing J on your keyboard. When it is active, a dark coating and aura wraps your hands and weapons, and that is your cue the damage bonus and the ability to hit Elemental users are live.
Upgrading to Buso Level 2 at Revolutionary Island
| Version | Requirement | Cost | Effect |
|---|---|---|---|
| Buso Level 1 | Level 350 | 100,000 Money | +5% Sword and Combat damage |
| Buso Level 2 | Level 1150, Level 1 owned | 250,000 Money | +7.5% Sword and Combat damage |
Once you have Level 1, the natural follow-up is Buso V2, and you must own Level 1 first before you can buy it. This one is not in Logue Town — you sail to Revolutionary Island and find the trainer inside a rock house there. The gate jumps to level 1150 and the price climbs to 250,000 Money, and in return the Sword and Combat boost rises to +7.5%.
Treat V2 as a long-term goal rather than part of this unlock — the level 1150 requirement is a big jump from 350, so most players run on Level 1 for a long stretch first.
Mistakes that block your Buso unlock
Two more trip you up: Armament Haki is bought, not dropped, so there is nothing to farm for it, and after you buy it you still have to press J — plenty of players purchase it and then wonder why nothing changed.
Observation Haki and movement skills to chase next

Observation Haki is the defensive counterpart worth grabbing after Buso: it runs on its own gate at level 600 for 150,000 Money and grants 3 dodges. It is a distinct ability, so unlocking Buso does nothing toward it.
For movement, Flashstep and Sky Walk are the adjacent progression goals most players line up alongside their Haki, giving you the mobility to actually land those coated hits in a fight.
Frequently Asked Questions
What level do you need for Armament Haki in Haze Seas?
You need to reach level 350 before Old Man Silver will sell you Buso.
How much does Buso Haki cost?
Armament Haki Level 1 costs 100,000 Money, and the Level 2 upgrade later costs 250,000 Money.
Where is Old Man Silver, the Buso Trainer?
He is in Logue Town, which some menus show as Logue City. Head there and open his dialogue to buy Buso.
How do you activate Armament Haki after buying it?
Press J on your keyboard. A dark coating appears over your hands and weapons while it is active.
Can you get Armament Haki faster through a drop or shortcut?
No — Buso is a purchase, not a drop, and there is no quest skip or cheaper path. The fastest route is simply rushing to level 350 with 100,000 Money already saved.
More questions⤵
What does Buso V2 require?
Buso Level 2 is at Revolutionary Island, inside a rock house, and needs level 1150, Level 1 already unlocked, and 250,000 Money. It raises the boost to +7.5% Sword and Combat damage.