If you’re using the Gum Fruit in Haze Seas, unlocking Gear 4 is one of the biggest upgrades you can work toward. It gives your character access to a powerful transformation and eventually unlocks an entirely new set of abilities.
The process itself isn’t complicated, but it does require a fair amount of farming since you’ll need multiple copies of a rare item called the Gear 4 Book.
Here’s everything you need to know to unlock Gear 4 and all of its skills.
How to Unlock Gear 4
Before anything else, you’ll need to obtain a Gear 4 Book.
This is a Legendary material that drops from the Gear 4 Boss.
Where to Find the Gear 4 Boss
The Gear 4 Boss is located on the Level 1900 Island.
Once you arrive, repeatedly defeat the boss until the Gear 4 Book drops.
Keep in mind that the book isn’t a guaranteed reward, so don’t be surprised if it takes several boss defeats before you get your first one.
Where to Use the Gear 4 Book
After obtaining your first Gear 4 Book:
- Travel to Sea 2 (C2).
- Go to the Spawn Island.
- Head to the right side of the island.
- Find the large Poneglyph structure.
- Interact with it.
- Select the Gear 4 option.
The game will consume one Gear 4 Book and permanently unlock the Gear 4 transformation for your Gum Fruit.
Gear 4 Transformation vs. Gear 4 Skills
This is the part that catches a lot of players by surprise.
Unlocking Gear 4 does not automatically unlock all of its attacks.
Your first Gear 4 Book only unlocks the transformation itself.
Every Gear 4 skill must then be unlocked individually.
How Many Gear 4 Books Do You Need?
To fully complete Gear 4, you’ll need a total of six Gear 4 Books.
Here’s the breakdown:
| Purpose | Books Required |
|---|---|
| Unlock Gear 4 Transformation | 1 |
| Unlock Gear 4 Move 1 | 1 |
| Unlock Gear 4 Move 2 | 1 |
| Unlock Gear 4 Move 3 | 1 |
| Unlock Gear 4 Move 4 | 1 |
| Unlock Gear 4 Move 5 | 1 |
| Total | 6 Books |
If you’re aiming to unlock every Gear 4 ability, prepare for a fairly long farming session.
Best Way to Farm Gear 4 Books
Since every unlock requires another Gear 4 Book, efficiency is important.
To speed up the grind:
- Stay on the Level 1900 Island.
- Defeat the Gear 4 Boss whenever it respawns.
- Use your highest-damage build to shorten fights.
- Farm with friends if the boss respawns quickly on your server.
The faster you defeat the boss, the more chances you’ll have to obtain additional books.
Is Gear 4 Required for Gear 5?
Yes.
If you’re planning to unlock Gear 5 later, completing Gear 4 is part of the progression.
That means you’ll need:
- The Gear 4 transformation.
- Every Gear 4 ability unlocked.
Skipping Gear 4 now will only delay your progress toward Gear 5.
Is Gear 4 Worth the Grind?
Although collecting six Gear 4 Books can take some time, the investment is worthwhile for anyone using the Gum Fruit.
You’ll gain:
- The Gear 4 transformation.
- Five additional combat abilities.
- Progress toward unlocking Gear 5.
- A much stronger overall moveset for both PvE and PvP.
If Gum Fruit is your main fruit, Gear 4 is one of the most important upgrades available.
Unlocking Gear 4 in Haze Seas is a straightforward process, but it requires patience. Farm the Gear 4 Boss on the Level 1900 Island until you collect your first Gear 4 Book, then visit the Poneglyph on Sea 2 Spawn Island to unlock the transformation.
From there, keep farming until you’ve collected a total of six Gear 4 Books, allowing you to unlock every Gear 4 ability. It may take a while, but completing Gear 4 is an essential step if you’re planning to master the Gum Fruit and eventually progress to Gear 5.