The best way to get a Tower Key in Sailor Piece is by beating Arena Fighters on Lawless Island. These enemies are easy to find on the north side of the portal and are level 12,000, so you’ll need to be above that level to take them on. The drop isn’t guaranteed, though, so you’ll have to farm them a good few times before one shows up in your backpack.
Once you have the key, you’ll get access to the Infinite Tower, where defeating mobs can reward you with Tower Tokens, Rerolls, XP, Coins, Gems, and more. Keep reading our Sailor Piece guide for more details on how to find the Tower Key.
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How to Get Tower Key in Sailor Piece
Although you can technically get a Tower Key from any enemy in the game, the drop chances are much higher on Lawless Island, which is basically an end-game area. You’ll need a steady supply of these keys since each one expires after a single use, so farming Arena Fighters regularly should be your goal. Before you head to Lawless Island, make sure you’re at least level 12,000.
To reach that level, you’ll need to clear quests across islands like Starter, Jungle, Desert, Snow, Sailor, Shibuya, Hollow, Boss, Dungeon, Shinjuku, Slime, Academy, Judgment, Soul Dominion, and Ninja. All the missions there are combat-based and can be picked up from NPCs near each portal. The more EXP you rack up, the faster you level up. You can also take on world bosses and spawn bosses for extra experience.
To get a Tower Key in Sailor Piece, follow these steps:
- Travel to Lawless Island via the Teleporter.
- Head north, just to the left of the Quest NPC, and to the right of the Atomic Boss Summoner.
- Keep beating Arena Fighters (Level 12,000) until one drops a Tower Key.
While you can use Sword or Melee damage to take them down, having a strong ability like Gilgamesh can one-shot enemies and make farming way faster.
If you have a Quake Fruit, head over to Shinjuku Island, position yourself in the middle with five enemies on each side, and use your Quake ability to take out all 10 at once. It’s a super fast way to snag multiple Tower Keys in one go.
How to Use Tower Key in Sailor Piece
Once you have a Tower Key, here’s how to enter the Infinite Tower:
- Head to Tower Island through the portal.
- Go north and interact with the NPC in the middle of the platform (it looks like Demon Slayer’s Kokushibo with “Infinite Tower” labeled above it).
- Hit the Spawn button, and you’ll be inside the dungeon within seconds.
You can bring up to four friends into the Infinite Tower. Once inside, you’ll drop straight to Floor 1. Activate your Haki for extra dodge and damage boost, then hit Start to kick off the first round. If you have the Gilgamesh ability, you can wipe out all enemies at once. It’s also really handy for dungeon runs.
Each floor gives you about three minutes to clear all the enemies. If you fail, you can spend a Tower Key to restart. After finishing each run, there’s a 15 second wait before the next one begins. The real reward for doing these runs is Tower Tokens. You can use them at the Tower Shop or Tower Upgrades. Here’s what’s available at each stop:
Infinite Tower Merchant
|
All Items |
Trade Tokens |
|---|---|
|
Abyssal Empress |
4,000 |
|
Cosmetic Crate |
1,500 |
|
Purple Flare Aura |
1,200 |
|
Aura Crate |
1,200 |
|
Abyssal Outfit |
900 |
|
Secret Chest |
600 |
|
Mythical Chest |
75 |
|
Legendary Chest |
30 |
|
Epic Chest |
15 |
|
Clan Reroll |
10 |
|
Rare Chest |
Six |
|
Trait Reroll |
Four |
|
Race Reroll |
Four |
|
Boss Key |
Three |
|
Dungeon Key |
Three |
|
Common Chest |
Two |
Infinite Tower Upgrades
|
All Upgrades |
Trade Tokens |
Available Upgrades |
|---|---|---|
|
Luck |
1,000 |
Five |
|
Damage |
750 |
|
|
Crit Damage |
750 |
|
|
HP |
500 |

