The newest Sailor Piece update brings a large Jujutsu Kaisen themed expansion packed with new specs, bosses, and systems. A brand new island opens up fresh content for high-level players, along with stronger enemies, new crafting paths, and several quality-of-life improvements that make grinding smoother. This guide breaks down everything added in the JJK update, including the new specs, island content, systems, and key changes you should know.
New Specs: Strongest Of Today & Strongest In History
The highlight of the update is the addition of two new melee specs:
- Strongest Of Today
- Strongest In History
Both specs are unlocked through the new mastery and crafting NPCs on the Shinjuku Island. Unlike normal quests, these specs require crafted items and boss drops. You’ll need to farm materials from the new bosses and use the crafting NPCs to create items required for mastery. Two new mastery NPCs are also located on the island, letting you upgrade and progress these specs once unlocked.
Shinjuku Island and New Bosses
The update introduces Shinjuku Island, a high-level area filled with new enemies and systems.
New Boss System
There are two new bosses on Shinjuku Island, and both use a difficulty system. You can spawn them using special items found through an NPC on the island. Higher difficulty settings generally mean tougher fights but better rewards. Other additions on the island include:
- 2 new quest NPCs
- Several new shop and utility NPCs
- A large number of new items tied to crafting and progression
This island is designed as an endgame farming zone, so expect challenging fights.
Aura Crates and New Rewards
A new loot system called Aura Crates has been added. These crates let you spin for special auras that provide a small damage boost. Aura Crates have:
- Extremely low drop rates
- Drop chances lower than secret chests
- Availability from NPC enemies and bosses
They are rare, but worth chasing for extra combat bonuses.
Ascend System and Level Cap Increase
A new Ascend system has been added to Sailor Island, giving players another progression path after reaching higher levels. Along with this system comes a new level cap, allowing further character growth. Additional progression rewards include:
- 2 new titles
- 2 new accessories
- 2 new mythic traits
- Extra storage slots for race and trait (2 more slots)
These upgrades give players more customization and long-term goals.
Quality of Life Improvements
Several gameplay improvements come with this update:
- Overall combat optimizations
- Auto boss spawn feature
- Faster stat rolling when clicking quickly
- Mythic trait rate increased to 0.3%
- Multiple bug fixes and performance improvements
These changes make farming smoother and reduce downtime.
Sailor Piece Codes:
- UPDATE3 ,
- BIGJJK ,
- SORRYFORSMALLDELAY
Also check out our Sailor Piece Codes for more rewards! The update also includes new redeemable codes that usually provide boosts, currency, or items. Codes are typically released alongside major updates and can be redeemed in the in-game settings or code menu. Make sure to redeem active codes quickly since they can expire without warning.
The Sailor Piece JJK update is one of the biggest expansions so far, adding new specs, a full island, tougher bosses, and major progression systems. With the Strongest Of Today and Strongest In History specs, plus the new ascend system and aura crates, there is plenty to grind for. Whether you are farming bosses or chasing rare traits, this update adds a lot of long-term content to explore.