How to Get the Tower Key in Sailor Piece

The Tower Key in Sailor Piece is an important item if you want to access one of the game’s best farming areas. It unlocks the Infinite Tower, where most late-game farming happens.

This guide shows you where to farm it and how to make the grind faster.

Where to Get the Tower Key in Sailor Piece

The key drops in just two main locations, so it’s pretty straightforward. You need to farm enemies on Lawless Island and Ninja Island.

Both locations have high-level NPCs, and the Tower Key drops as a random reward, so you will need to grind for a while before getting one. You can get it from regular mob waves, stronger NPCs, and even bosses in those areas.

Some players get lucky early, but most will need to clear multiple waves before seeing a key.

These enemies are not beginner-friendly. They have high HP and deal heavy damage, so going in underprepared will slow you down a lot. If your damage feels low or fights take too long, it’s better to level up first.

There’s also a specific enemy type on Lawless Island called Arena Fighters, and they’re one of the better enemies to focus on if you want more keys. They are tough, but worth focusing on if you can handle them.

Best Way to Farm the Tower Key in Sailor Piece

Since farming Tower Keys is RNG-based, your goal should be clearing enemies as fast as possible. That means you should focus on an efficient farming setup instead of fighting randomly. A strong build will make a huge difference over time.

First, make sure you are using AoE (Area of Effect) abilities. These let you hit multiple enemies at once, making farming much faster. Single-target builds will slow you down, especially against mob waves.

Your loadout also matters more than you might expect. A good sword, strong fighting style, and upgraded skills will reduce the time per fight. If your build is slow, your overall drop rate will suffer.

Luck also plays a role here. If your build or titles allow it, try to increase your luck stat. Even a small boost can help over long farming sessions.

You can also try AFK farming methods if your character is strong enough to survive without constant input. This works best in areas where enemies continuously spawn.

Once you start getting keys, don’t forget what they are used for. Head over to Tower Island, talk to the NPC in the center, and use 1 key to spawn the Infinite Tower, and each run consumes one, so you will always need more.

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