If you have been playing Sailor Piece for a while, you have probably heard players talking about Cosmic Being. This fighting style inspired by Garou from One Punch Man is widely considered one of the most powerful melee builds in the entire game.
Getting it is no small feat, and that is exactly why I created this guide. By the end, you will know exactly how to get Cosmic Being in Sailor Piece, what materials you need, and how to handle the brutal boss fight that stands between you and this endgame-tier style.
Cosmic Being is an endgame-tier fighting style in Sailor Piece that draws inspiration from the manga character Garou, also known as the “Human Monster.” This style gives you access to devastating attacks with high damage output and flashy move animations.
We tested multiple melee builds during our time with the game, and Cosmic Being consistently outperformed everything else in raw DPS scenarios. It is a favorite among serious players who have invested the time to unlock it.
The style is obtained by collecting specific materials from the Cosmic Being boss and then purchasing it from an NPC on Punch Island. Alternatively, you can get it directly by defeating the Garou world boss with the right loot drop.
Either route requires you to have unlocked Sea 2 first, which itself demands significant level progression. The investment is substantial, but the payoff makes it worth every hour you spend grinding.
Before you can even think about fighting the Cosmic Being boss, you need to unlock Sea 2. This is not a quick process. You must reach level 12,500 or higher to be eligible for the Sea 2 update.
We know that number sounds extreme, and it is. This is endgame content designed for players who have already invested serious time into Sailor Piece.
Once you meet the level requirement, head to World Island and find the Sea Traveler NPC. This character will give you a questline that involves gathering Map Fragments and completing specific tasks.
The questline is straightforward but time-consuming, involving multiple steps that will test your patience. After completing the Sea Traveler questline, Sea 2 will unlock and you can finally access the content needed to obtain Cosmic Being.
With Sea 2 unlocked, you can now pursue Cosmic Being. There are two main paths to obtain this fighting style, and I will walk you through both.
The first method involves finding the Cosmic Being NPC on Punch Island. This NPC is located on top of a building in the central area of the island. Once you find them, check what materials they require for the trade.
You will need to gather specific items with known drop rates from the boss fight. After collecting everything, return to the NPC and complete the purchase to unlock Cosmic Being.
The second method is more straightforward but equally challenging. The Garou world boss spawns periodically on Punch Island, and defeating it gives you a chance to drop the Cosmic Being style directly.
This boss is not easy. He has approximately 499,999,997,952 HP, which translates to around 500 billion health points.
Players in our testing group reported needing to deal roughly 30 billion damage per skill to contribute meaningfully to the fight.
Whether you choose the NPC trade route or the direct boss drop, the result is the same. You will have access to the full Cosmic Being moveset and all its devastating attacks.
If you go the NPC route, you will need to gather specific materials. Here are the exact requirements and their drop rates, based on community-verified data from sailorpiecewiki.com and confirmed by player reports.
Cosmic Essence requires 12 pieces and has a 100% drop rate from the boss. Star Mark requires 8 pieces and also drops 100% of the time.
Galaxy Shard needs 5 pieces with 100% drop rate. Monster Pulse requires 3 pieces and drops 100% of the time.
These four materials are guaranteed if you can defeat the boss.
The real challenge is the Cosmic Being Title, which has only a 1.75% drop rate. This makes it the hardest material to obtain for the full set.
Many players report spending hours server-hopping and fighting the boss repeatedly just to get this single item. Based on community feedback, expect to fight the boss anywhere from 20 to 50 times before seeing a Cosmic Being Title drop.
Rng can be both kinder and crueler to individual players, so your experience may vary significantly from the average.
The Cosmic Being boss, sometimes referred to as Cosmic Garou, is one of the most challenging world bosses in Sailor Piece. His HP sits at 499,999,997,952, which the community rounds to 500 billion.
This absurd health pool means you cannot defeat him solo unless you have an incredibly powerful build. That is why most players recommend group farming.
The boss spawns based on server time, and his respawn timer is 30 minutes after defeat. This timer forces players to engage in server hopping if they want to maximize their farming efficiency.
You defeat the boss, wait 30 minutes for respawn, and then either stay in the same server or jump to a new one.
What makes this fight especially difficult is the adaptation mechanic. At every 25% HP interval, the boss adapts and gains a new buff.
According to sailorpiecewiki.com, these adaptations can include Harden (increased defense), Rage (increased damage), Accelerate (faster attacks), and Regenerate (health recovery). These phases make the fight unpredictable.
The damage reduction phases also mean that your effective damage output decreases as the fight progresses. A strategy our team found effective was using ranged or mobile builds during the harder adaptation phases.
Using ranged or mobile builds helps you avoid the boss increased damage output while your DPS characters dealt damage from a safe distance.
Once you have Cosmic Being unlocked, you will want to learn its moveset. Here are the keybinds and what each move does.
The Z move is your basic attack, a quick combo that chains into additional hits. The X move is your secondary skill, offering a stronger strike with knockback potential.
The C move is your area-of-effect attack, hitting multiple enemies in front of you. The V move provides mobility, allowing you to dash away from danger or close distance quickly.
Finally, the F move is a special attack that requires its own unlock process, covered in the next section.
Mastering the combo chain between these moves is essential for maximizing your DPS in endgame content. Players who take the time to learn the timing and flow of these attacks consistently outperform those who just button-mash during combat.
The F move for Cosmic Being is not unlocked by default. You must complete the Cosmic Master questline to access this powerful special attack. This questline becomes available after you have already obtained the base Cosmic Being style.
The requirements involve gathering materials related to Astral Bloodline, which you can obtain through various endgame activities.
Once you have collected everything the quest demands, interact with the specified NPC to complete the final unlock step.
The F move itself is a high-damage special attack that makes Cosmic Being even more devastating in PvE scenarios and player versus player combat.
Our team found that completing the Cosmic Master questline took an additional 10 to 15 hours of gameplay after obtaining the base style. Factor this time into your overall grinding schedule if you want the fully upgraded version.
Based on feedback from the r/SailorPiece and r/Roonby communities, here are the most effective strategies for farming Cosmic Being materials.
Group farming is highly recommended. The boss has 500 billion HP, and dealing with that solo is unrealistic for most players.
Form a group of 3 to 5 players with powerful builds to maximize your damage output while minimizing the time per fight. Players report contributing around 30 billion damage per skill in organized groups.
This translates to faster clears and more efficient material farming per hour.
Server hopping is your friend for the title grind. Since the Cosmic Being Title has only a 1.75% drop rate, you will need to fight the boss many times.
After each defeat, either wait for the 30-minute respawn or hop to a different server to find another spawned boss immediately. This method maximizes your number of attempts per play session.
For the actual fight, consider using a mobile or ranged build during the dangerous adaptation phases.
The boss enters different buff states at each 25% HP threshold, and these phases often feature increased damage output that can wipe less durable players.
Staying mobile and dealing damage from range during these moments keeps your group alive while still contributing to the kill.
To get Cosmic Being in Sailor Piece, you must first unlock Sea 2 by reaching level 12,500 and completing the Sea Traveler questline. Then defeat the Cosmic Being boss on Punch Island to collect materials like Cosmic Essence, Star Mark, Galaxy Shard, and Monster Pulse. You can either trade these materials to the Cosmic Being NPC on top of a building in Punch Island, or get lucky with a direct boss drop.
The Cosmic Being NPC is located on top of a building in the central area of Punch Island. Look for a climbable structure in the heart of the island, and you will find the NPC waiting at the summit.
The Cosmic Being boss has a 30-minute respawn timer after defeat. Players use this timer to plan their farming sessions, either waiting in the same server or server hopping to find another freshly spawned boss.
The Cosmic Being Title is the hardest item to obtain, with only a 1.75% drop rate from the boss. Players typically need 20 to 50 boss kills to finally get this item, making it the material that extends farming sessions the most.
To unlock the Cosmic Being F Move, you must complete the Cosmic Master questline after obtaining the base Cosmic Being style. This involves gathering Astral Bloodline materials from endgame activities and interacting with a specific NPC to complete the final unlock step.
No, the Cosmic Being boss cannot be summoned manually. He spawns based on server-time mechanics, and players must wait for his natural spawn or engage in server hopping to find a spawned boss for farming.
Getting Cosmic Being in Sailor Piece is a significant achievement that represents hundreds of hours of endgame progression. You now have the complete roadmap for how to get Cosmic Being in Sailor Piece.
This includes unlocking Sea 2 at level 12,500, defeating the 500 billion HP boss, and collecting those precious materials. The journey is long, but Cosmic Being remains one of the strongest melee fighting styles in the game.
Cosmic Being will carry you through future updates and challenging content. Remember to group up for efficiency, master the boss adaptation mechanics, and be patient with the Cosmic Being Title grind.
See you on Punch Island.
