Sailor Piece Moon Update Live – New Codes, Moon Slayer Boss, Power System, Upper Seal & More
The Sailor Piece Moon Update is finally live, bringing a strong mix of new progression systems, combat content, rewards, and quality-of-life improvements. This update introduces the new Power System, the new Moon Slayer boss, the new Moon Slayer melee, a new clan, a new aura, a new accessory, and multiple UI and gameplay upgrades.
On top of that, players also received 7 new Sailor Piece codes, making this one of the biggest update launches in recent weeks. If you are trying to figure out how to get Upper Seal, where to use it, or how to get Power Shards, this guide covers the most important details.
🎁 New Sailor Piece Moon Update Codes
The Moon Update launched with several new redeemable codes. The newly posted codes are:
SEA2NEXTUPDATE
MOONUPDATE
TYFOR115KFOLLOW
BIGGESTUPDATENEXT
THEHUGE500KCCU
TYFOR515KCCU
INSANE530KCCUTYSM
If you want to check the latest active rewards and updated code status, you can also use the codes page here:
View all active Sailor Piece codes
🌙 What Is New in the Sailor Piece Moon Update?
The Moon Update adds new systems, new drops, a new boss, and more progression content across several parts of the game.
New Power System on Lawless Island
New item: Power Shard
New mythic passive: Frenzy
Added 2 more Ascension levels
The update also expands the ascension system with Ascension 9 and Ascension 10, giving high-level players new progression goals and more late-game grind.
Requirements for Ascension 9:
Reach level 11500
Kill 1500 NPCs
Kill 700 Bosses
Deal 1T (1000B) Damage
Use Abilities 1500 Times
2x Azure Heart
2x Evolution Fragment
Clear 15 Medium+ Boss Rushes
Requirements for Ascension 10:
Reach Level 13000
Kill 2000 NPCs
Kill 1000 Bosses
Deal 7.5T (7500B) Damage
Use Abilities 2000 Times
2x Path Fragment
3x Corrupt Crown
Reach Floor 75+ 2 Times in Infinite Tower
Added Trade Log
New item: Upper Seal
New boss: Moon Slayer
New melee: Moon Slayer
New title: Six Eyed Demon
New accessory: Moon Outfit
New aura: Crescent Aura (Legendary)
New clan: Upper Clan
⚡ New Power System in Sailor Piece
One of the biggest additions in this update is the new Power System. Players can unlock and interact with this system on Lawless Island, and it is tied to the new Power Shard item.
This system looks like one of the update’s main progression features, especially for players who want more build depth beyond the previous melee, boss, and passive systems.
How to get Power Shard in Sailor Piece
Power Shards can be obtained from mobs and NPC enemies, including areas such as Lawless Island and Ninja Island. They are used for the new Power System, and the drop chance is currently unknown.
According to available player reports, the drop chance appears to be lower than Passive Shards, which suggests Power Shards may become one of the more valuable farming targets in the current update.
Power Shard drops from: Lawless Island and Ninja Island mobs/NPCs
Used for: Power System
Power System location: Lawless Island
Drop chance: Unknown
👹 New Moon Slayer Boss and Upper Seal Guide
The update also adds the new Moon Slayer boss, which is located on Boss Island. To summon this boss, players need the new Upper Seal item.
How to get Upper Seal in Sailor Piece
Upper Seal can be obtained as a drop from Arena Fighters on Lawless Island. Once you get one, you can use it to summon the Moon Slayer boss on Boss Island.
The exact drop rate is currently unknown, but it has been noted that the chance is lower than other summoning items, so players should expect some farming before getting regular boss summons.
Upper Seal drops from: Arena Fighters on Lawless Island
Used for: Summoning Moon Slayer boss
Boss location: Boss Island
Drop chance: Unknown
⚔️ New Moon Slayer Melee
The new Moon Slayer melee is one of the main combat additions in the Moon Update. Together with the new boss and the Upper Seal farming loop, it gives players a fresh endgame target and another reason to grind Lawless Island and Boss Island content.
The addition also continues Sailor Piece’s recent trend of expanding melee progression with more distinct class-style options instead of focusing only on swords.
🧬 New Clan, Passive, Aura, Title, and Accessory
Alongside the bigger system changes, the Moon Update also adds several collectible and progression-based rewards.
New mythic passive: Frenzy
New clan: Upper Clan
New title: Six Eyed Demon
New accessory: Moon Outfit
New aura: Crescent Aura (Legendary)
Players who enjoy farming cosmetics, passives, and special build bonuses should have plenty to chase in this update.
⚙️ Moon Update Quality-of-Life Changes and Fixes
The Moon Update also includes several useful quality-of-life changes that improve navigation, portals, UI clarity, and trading.
Changed the teleport UI and added icons for each island feature
Players can now hover over features to see what they are
Added a new Tower setting that lets solo players reset tower progress at any floor
Added a start button to portals
Added small optimizations
Added a spec UI shown at the bottom right when equipping a spec
Players can disable the new UI in settings and re-enable the old Classic Cooldown UI
Changed the trade UI
Event accessories no longer require duplicate copies
Added Trade Log
More fixes were also included
These changes should make the update feel smoother overall, especially for players who spend a lot of time farming, trading, and moving between systems.
📈 Why the Moon Update Matters
The Sailor Piece Moon Update adds more than just a new boss or melee. It introduces a full Power System, expands item farming with Power Shards and Upper Seal, adds new ascension progression, improves UI systems, and gives players several new goals through fresh rewards and unlocks.
For most players, the two biggest things to learn right away are simple: farm Upper Seal on Lawless Island to summon Moon Slayer on Boss Island, and farm Power Shards to use the new Power System on Lawless Island.
Tip: Start by farming Arena Fighters on Lawless Island for Upper Seal, then check the Sailor Piece codes page to claim the newest update rewards.