What to know
- The Jinwoo Sword is unlocked through the Jinwoo Trainer NPC on Sailor Island.
- You must complete five combat-focused quests, including PvP and boss farming.
- Rare drops like Shadow Heart, Dark Rings, and Abyss Edges are required.
- A total of 2.5 million cash and 7,500 gems is needed to finalize the unlock.
The Jinwoo Sword is one of the most sought-after weapons in Sailor Piece because of its high damage potential and prestige value. If you are aiming to boost your late-game combat performance, this sword is a major upgrade. However, unlocking it is not simple. You will need patience, strong gear, and a clear plan. Here’s everything you need to know to get it as fast as possible.
| Requirement Type | Details |
|---|---|
| NPC Location | Jinwoo Trainer on Sailor Island |
| Quest Count | 5 Combat Challenges |
| Damage Taken | 15 Million |
| NPC Kills | 750 NPCs |
| Damage Dealt | 100 Million |
| PvP Kills | 10 Players |
| Boss Defeats | 15 Jinwoo Boss Kills |
| Materials Needed | 1 Shadow Heart, 3 Dark Rings, 6 Abyss Edges |
| Currency Required | 2.5M Cash + 7,500 Gems |
Where to find the Jinwoo Trainer
You begin the process on Academy Island, where the Jinwoo Trainer NPC is located. This NPC is the only way to unlock the Jinwoo Sword, so interacting with them is mandatory. Once you speak to the trainer, you will receive a chain of five progression-based challenges designed to test both your PvE and PvP capabilities.
Make sure you are adequately leveled and equipped before starting, because several of these requirements demand sustained combat performance.
How to complete the Jinwoo Trainer quests fast
Taking 15 million damage efficiently
The first major requirement is to take 15 million damage. This does not mean dying repeatedly without strategy. The fastest way is to fight high-level NPC groups while maintaining healing or defensive abilities. Let enemies swarm you while sustaining yourself through lifesteal, regeneration, or support abilities. You want consistent incoming damage without instant death.
Boss fights also contribute significantly toward this requirement, so combining this with your later Jinwoo boss grind can save time.
Eliminating 750 NPCs quickly
The second requirement demands 750 NPC kills. Grinding in high-density spawn areas is the fastest method. Focus on zones where enemies respawn rapidly. Area-of-effect abilities dramatically reduce completion time. Avoid low-level mobs if your damage output is high, as stronger enemies typically provide faster respawn rotations and better efficiency.
Dealing 100 million total damage
This objective stacks naturally as you grind NPCs and bosses. The key is sustained high DPS over time. Boss farming is especially efficient because their large health pools allow you to accumulate damage quickly. Using damage buffs, awakened forms, or high-scaling abilities will speed this up significantly.
If you are optimizing, combine this step with the 750 NPC kills and Jinwoo boss defeats to multitask progress.
Securing 10 player kills safely
The PvP requirement can be the most difficult for some players. You must eliminate 10 players. Choose your engagements wisely. Target isolated players rather than attacking large groups. Fighting near safe zones or high-traffic areas can increase your chances of finding opponents, but always ensure you are confident in your build before engaging.
If you are undergeared, consider improving your stats before focusing heavily on PvP.
Defeating the Jinwoo boss 15 times
This is the most time-intensive objective. You must defeat the Jinwoo boss 15 times. Understanding the boss’s attack patterns and cooldown windows is critical. Farming with a strong team can speed this up dramatically. If soloing, ensure you have sustain and burst damage.
Boss respawn timing matters, so stay near the spawn location and rotate efficiently between kills.
Materials required after quest completion
Once all five challenges are complete, the grind is not over. You must return to the Jinwoo Trainer and provide specific materials along with currency.
| Item | Quantity Required |
|---|---|
| Shadow Heart | 1 |
| Dark Rings | 3 |
| Abyss Edges | 6 |
| Cash | 2,500,000 |
| Gems | 7,500 |
Shadow Heart, Dark Rings, and Abyss Edges are typically obtained from high-tier enemies and bosses, so you will likely gather some during your Jinwoo boss farming. If not, focus on endgame farming zones with higher drop rates.
The currency requirement is significant. Make sure you are consistently completing missions, farming bosses, and selling valuable drops to accumulate enough cash and gems.
Unlocking the Jinwoo Sword
After completing every quest and collecting all required materials, return to the Jinwoo Trainer. Once you hand everything over, the Jinwoo Sword will finally be unlocked. This weapon represents a serious power spike and is considered a high-tier option in Sailor Piece’s combat meta.
You will immediately notice improved damage output, especially if your build complements sword scaling. Pair it with strong passive boosts to maximize performance.
Why the Jinwoo Sword is worth the grind
The reason players rush to unlock this weapon is simple. Its damage potential and combat impact justify the long grind. The mix of PvE and PvP challenges ensures that only well-rounded players obtain it. If you commit to the full requirement list strategically, you can complete everything much faster than expected.
Efficiency comes from stacking objectives together. Combine boss farming with damage goals. Stack NPC kills with damage dealt. Take controlled damage while grinding. Every action should contribute toward multiple requirements at once.
