How to Get Star Mark in Sailor Piece (April 2026)

The Star Mark is one of the most sought-after materials in Sailor Piece’s Sea 2, and for good reason. This rare drop is your ticket to unlocking the Cosmic Being fighting style, one of the most powerful combat styles in the game. I’ve spent countless hours farming this material, and I’m going to share everything I’ve learned about getting it efficiently.

Whether you’re just reaching Sea 2 or you’ve been grinding for days without success, this guide will walk you through exactly how to get Star Mark in Sailor Piece. If you’re new to Sea 2 progression, check out our Sailor Piece beginner guide to get up to speed.

What is Star Mark in Sailor Piece?

Star Mark is a rare crafting material that drops exclusively from the Cosmic Being Boss in Sea 2. You cannot buy it, trade for it, or obtain it from any other source. This material is essential for unlocking the Cosmic Being fighting style, making it one of the most coveted drops for players looking to maximize their combat potential.

What makes Star Mark particularly valuable is its exclusivity. Unlike other materials that might drop from multiple sources or be available through different methods, Star Marks only come from defeating the Cosmic Being Boss. This single-source requirement creates a bottleneck that every player must pass through to access one of the game’s strongest fighting styles.

Where to Find the Cosmic Being Boss?

The Cosmic Being Boss is located on Punch Island in Sea 2. This isn’t just any boss fight – we’re talking about a massive 500 Billion HP enemy that requires serious preparation and dedication to defeat. The boss spawns on a 30-minute respawn timer, which means planning and timing are crucial for efficient farming.

Before heading to Punch Island, make sure you’re adequately leveled and equipped. Most players recommend being at least mid-Sea 2 progression before attempting this boss solo. However, you can join groups with higher-level players if you’re struggling to deal enough damage on your own. For the most current spawn times and boss information, you can always reference official Sailor Piece resources.

Star Mark Drop Rate and Pity System

Understanding the drop mechanics is crucial for managing your expectations and planning your farming sessions. The Star Mark has a 23% base drop rate from the Cosmic Being Boss. This means statistically, you should get one drop about every 4-5 kills – but RNG can be unpredictable.

Fortunately, Sailor Piece includes a pity system to prevent endless bad luck. While the exact pity number isn’t publicly documented by developers, community testing suggests you’re guaranteed a Star Mark after a certain number of consecutive boss kills without a drop. This safety net ensures that even the unluckiest players will eventually get the materials they need.

Your luck stat directly affects the drop rate. With luck-boosting titles and accessories, you can potentially increase the 23% base rate significantly. Every point of luck matters when you’re grinding for rare drops like Star Mark.

How to Get Star Mark in Sailor Piece: Step-by-Step

Now let’s break down the exact process for obtaining Star Marks from start to finish.

Step 1: Reach Sea 2 and Unlock Punch Island

Before you can even think about farming Star Marks, you need to progress through the game until you reach Sea 2. This requires completing the main story quests and defeating the necessary bosses to unlock access to the Sea 2 islands. Punch Island becomes available once you’ve progressed far enough into Sea 2.

Step 2: Prepare Your Build and Equipment

The Cosmic Being Boss hits hard and has massive HP. You’ll want to equip your strongest weapons and armor, focusing on damage output if you’re soloing. Consider using AoE weapons if you’re farming in a group to help tag the boss and qualify for drops. Make sure you have enough consumables to last through multiple boss attempts.

Step 3: Navigate to Cosmic Being Spawn Location

Once you’re on Punch Island, head to the designated Cosmic Being spawn area. This location is well-known in the community, and you can typically find other players already there waiting for spawns. The boss spawns in a predictable location, so you won’t have to search the entire island.

Step 4: Defeat the Cosmic Being Boss

This is where the real work begins. With 500 Billion HP, the Cosmic Being Boss is a damage sponge that requires sustained DPS to take down. Focus on dealing as much damage as possible while avoiding the boss’s attacks. If you’re in a group, coordinate your attacks to maximize efficiency.

Step 5: Collect Drops and Repeat

After defeating the boss, check your drops immediately. Star Marks will appear in your inventory if the drop was successful. If you didn’t get one, don’t get discouraged – the 23% drop rate means you’ll likely need multiple attempts. Either wait for the respawn or move to another server (more on that strategy below).

Best Strategies to Farm Star Mark Faster

After farming Star Marks extensively, I’ve discovered several strategies that can significantly speed up the process. These techniques can cut your farming time by 50% or more if used correctly.

Server Hopping Technique

Server hopping is the most effective strategy for farming Star Marks efficiently. Instead of waiting 30 minutes for the boss to respawn on your current server, you can hop to different servers where the Cosmic Being Boss has already spawned. This allows you to attempt multiple boss fights in the time it would take to wait for a single respawn.

Here’s how server hopping works: Join a Sailor Piece server, check if the Cosmic Being Boss is spawned at Punch Island, and fight it if present. If the boss isn’t spawned or you’ve already defeated it, leave and join a different server. Repeat this process continuously. With practice, you can complete 5-10 boss attempts per hour instead of just 2.

Luck Optimization

Maximizing your luck stat is crucial for increasing your Star Mark drop rate. Every point of luck improves your chances, so stack as many luck-boosting items as possible. Use titles that provide luck bonuses, equip luck accessories, and consider joining a clan that offers luck boosts. These small increases add up quickly over multiple boss fights.

The difference between farming with no luck boosts versus maximum luck can be substantial. While I can’t share exact drop rate modifiers, community testing shows a noticeable improvement in drop frequency when luck is optimized. For more detailed information on optimizing your character’s abilities, check out our Sailor Piece Skill Trees guide.

Group Farming Benefits

Farming in a group provides multiple advantages. First, you can kill the boss much faster with combined damage output. Second, some luck bonuses apply to the entire group, meaning everyone benefits from individual players’ luck-boosting equipment. Finally, group farming is simply more enjoyable and less tedious than grinding solo.

I recommend finding a dedicated farming group or joining a community of players who are also working toward Cosmic Being fighting style. Coordinate your server hopping efforts and share drops when possible. The social aspect makes the grind feel much shorter.

Cosmic Being Fighting Style Requirements

Star Marks are just one piece of the puzzle for unlocking the Cosmic Being fighting style. You’ll need multiple Star Marks along with other rare materials to complete the unlock. The total investment is significant, but the payoff is worth it – Cosmic Being is widely considered one of the top fighting styles in Sea 2.

Beyond Star Marks, you’ll need to collect Galaxy Shards, Cosmic Essence, and other materials that drop from various Sea 2 bosses and activities. Each material has its own drop rate and farming method, so plan your progression accordingly. I recommend creating a checklist of all required materials and tracking your progress as you farm.

Once you have all the materials, you’ll need to visit the specific NPC that handles fighting style unlocks. This NPC is located in Sea 2 and will exchange your materials for the Cosmic Being fighting style. Make sure you have inventory space available before initiating the unlock process.

FAQ

Conclusion

Learning how to get Star Mark in Sailor Piece is just the beginning of your journey toward unlocking the powerful Cosmic Being fighting style. The grind can be tedious, but with the right strategies – server hopping, luck optimization, and group farming – you can significantly reduce the time investment required.

Remember that the 23% drop rate means patience is key, but the pity system ensures you’ll eventually get your drops. Focus on maximizing your efficiency through the strategies outlined above, and you’ll have your Star Marks before you know it. The Cosmic Being fighting style is worth the effort, providing you with one of the strongest combat options in Sea 2.