Unlocking the System Breaker in Universal Piece is a long but rewarding journey. This spec, inspired by the Shadow Monarch Sung Jin-Woo, offers some of the most powerful abilities in the game. If you’re aiming to wield shadows and dominate bosses with style, this guide will walk you through every step—from farming the Ghost Key to completing the intense Trial and earning the Shadow Heart.
What is System Breaker?
System Breaker is a late-game spec in Universal Piece modeled after the iconic Shadow Monarch from Solo Leveling. It allows players to summon shadow versions of bosses they’ve defeated, turning them into allies with devastating abilities. Moves like Igris and Full Arise provide both crowd-control and damage-dealing tools, making this spec ideal for PvE and high-level grinding. The flashy effects and strategic depth make System Breaker one of the most sought-after specs in the game.
However, unlocking it is not simple. You’ll need patience, rare items, and the ability to conquer some of the toughest bosses. Here’s how to begin your journey.
How to Get System Breaker in Universal Piece
The process to unlock System Breaker involves multiple stages across several islands. Each step requires specific items and fights. Below is the full breakdown:
1. Farm Ghost Keys
Ghost Key is the first item you’ll need, and it can be obtained in three ways:
System Breaker Boss (15% drop chance)
Dual Swordmaster Boss (5% drop chance)
Fishing (chance-based)
You’ll likely need to grind the bosses several times or spend a long session fishing to collect enough Ghost Keys. These keys are essential for summoning the next boss: King of Curses.
2. Summon King of Curses
Go to Bones Island and use a Ghost Key to summon King of Curses, a powerful boss required for the next step. The boss has a 3.5% chance to drop an item called Chicken. This drop is extremely rare, so multiple summons may be required.
Note: Chicken is a vital item used to open the gate to the Red Knight—your next challenge.
3. Use Chicken to Access Red Knight’s Gate
Once you’ve obtained a Chicken, head to Solo Island and find the Red Knight’s Gate. You’ll use the Chicken item to unlock this gate.
Defeating the Red Knight here offers a 1.5%–2.5% chance to get Red Soul, the next key item in the process.
4. Prepare for the Trial
Once you have the Red Soul, gather the following:
5x Joystick
2,000G$
After that, speak to the NPC marked with ‘Soul???’ at Solo Island to start the System Breaker Trial.
5. Complete the System Breaker Trial
The trial consists of two boss fights:
Red Knight (1,000,000 HP)
System Breaker Trial Boss (5,000,000 HP)
Be prepared for high-damage attacks and long battles. Once both bosses are defeated, you’ll have a 45% chance to receive Shadow Heart.
If you don’t get it on your first attempt, you’ll need to gather the resources again and retry the Trial.
6. Unlock System Breaker
With the Shadow Heart in hand, collect 45,000G$ and return to Solo Island. Find the NPC with the name ‘?????’ and hand over both the Shadow Heart and the G$.
This will officially unlock the System Breaker spec for your character.
Uses and Benefits of System Breaker
System Breaker stands out not only for its power but also its versatility and visual impact. Here are the main advantages:
Summon defeated bosses as shadow allies, giving you added DPS and defense in fights.
Signature abilities such as:
Igris: Summons a powerful shadow swordsman
Emperor: Calls forth a stronger shadow unit
Full Arise: Revives multiple shadows from defeated enemies
PvE dominance: System Breaker is excellent for clearing bosses and farming mobs quickly.
Visual impact: The aesthetic effects mimic the Shadow Monarch’s style, enhancing immersion.
Farming Tips for Ghost Key and Chickens
Given the rarity of the key items, efficient farming is crucial. Here are tips to speed up the process:
Boss Looping: Alternate between System Breaker and Dual Swordmaster bosses to increase your Ghost Key yield.
Fishing Focus: Equip luck-boosting items (if available) to improve your odds when fishing for Ghost Keys.
Team Play: Join a group when fighting King of Curses to make repeat runs faster.
Multi-run Planning: Always bring extra Joysticks and G$ so you can retry the trial immediately if Shadow Heart doesn’t drop.
Final Thoughts
Unlocking System Breaker in Universal Piece is a challenging, grind-heavy experience—but it’s also one of the most rewarding specs in the game. From farming Ghost Keys and rare Chickens to surviving high-HP boss trials, every step builds toward one of the flashiest and most powerful builds available.
If you’re a fan of Sung Jin-Woo or just want to dominate your enemies with a shadow army, System Breaker is absolutely worth the effort. Plan your path, prepare your gear, and start your journey to becoming the true Shadow Monarch of Universal Piece.