Abyss Sigil is a legendary item in Sailor Piece that drops from specific NPCs on Lawless Island. The drop rate is low, so getting Abyss Sigils requires farming enemies repeatedly until they drop. Here's where to find Abyss Sigils in Sailor Piece and the fastest way to farm them.
How to Get Abyss Sigil in Sailor Piece
Travel to Lawless Island to start farming for Abyss Sigils. This is a newer island added to Sailor Piece that contains the enemies who drop this material.
- Find Arena Fighters on Lawless Island: Look for Arena Fighter NPCs around Lawless Island. These are the only enemies that drop Abyss Sigils. Arena Fighters spawn regularly. You won't run out of enemies to fight since they respawn after being defeated.
- Farm Arena Fighters Repeatedly: The Abyss Sigil has a small drop chance from Arena Fighters. This means you need to defeat many Arena Fighters before getting sigils.
- Use High Damage Fighting Styles: Equip a fighting style that deals heavy damage to kill Arena Fighters faster. The quicker you eliminate each enemy, the more Arena Fighters you can defeat per hour. More kills means more chances for Abyss Sigil drops.

How to Use Abyss Sigil in Sailor Piece
Abyss Sigils have two main uses in Sailor Piece, both located on Lawless Island:
- Spawning the Atomic Boss: Use Abyss Sigils to summon the Atomic boss on Lawless Island. The boss spawner requires Abyss Sigils along with other materials to activate the fight.
- Purchasing the Atomic Sword: The Atomic NPC on Lawless Island sells the Atomic sword in exchange for Abyss Sigils and other materials. You need 80 Abyss Sigils just for the sword, plus additional materials the NPC requires.
80 Abyss Sigils is a massive amount considering the low drop rate from Arena Fighters. Expect to spend many hours farming Arena Fighters to collect enough sigils for the sword. This makes the Atomic sword one of the hardest weapons to obtain in Sailor Piece. However, it is worth the grind since it's one of the stronger weapons available.
Abyss Sigil drops from Arena Fighter NPCs on Lawless Island with a low drop rate. Farm these enemies using high-damage fighting styles to maximize kills per hour and increase your chances of getting drops. For more Sailor Piece guides, check out our Sailor Piece Wiki.
Published: March 25, 2026