If you’re grinding Sailor Piece and trying to unlock one of the strongest melee specs in the game, you’ve probably heard about the Crimson Heart. This item is required to unlock the Sukuna Spec, but it’s also one of the rarest drops tied to the Sukuna boss.
Because the drop chance is low and the boss spawns on a timer, many players struggle to farm it efficiently. This guide explains where to get Crimson Heart, how the Sukuna boss works, and the fastest way to farm the item.
Sailor Piece Crimson Heart Guide
The Crimson Heart is a mythical rarity item in Sailor Piece.
Its main purpose is to unlock the Sukuna Melee Spec, which is currently considered one of the strongest combat styles in the game.
Aside from unlocking the spec, the item does not have many other uses except possibly trading between players.
Because it’s required for the Sukuna build, many players repeatedly farm the Sukuna boss until they obtain it.
Where to Get Crimson Heart
The Crimson Heart drops from the Sukuna Boss.
You can find this boss at:
Shibuya Station
Once you arrive at the area, you’ll need to wait for the boss to spawn.
Sukuna Boss Spawn Time
The Sukuna boss spawns every 7 minutes and 30 seconds.
This makes it one of the more consistent bosses to farm because the respawn time is fairly short compared to other bosses in the game.
A map marker and countdown timer will appear on your screen when the boss is about to spawn, making it easy to locate.
Sukuna Boss Difficulty
Sukuna has approximately 5 million HP.
While this might sound like a lot, the boss is actually easier than several other bosses in Sailor Piece. Players with a decent build can defeat it without too much trouble.
Because the respawn timer is short, many players simply stay near the spawn location and farm Sukuna repeatedly.
Crimson Heart Drop Chance
The reason Crimson Heart farming can take time is because the drop rate is very low.
The drop chance is approximately:
2.5%
This makes it the rarest drop from the Sukuna boss.
Most of the time you’ll receive other rewards instead before finally getting the Crimson Heart.
Full Sukuna Boss Drop List
When you defeat Sukuna, you have a chance to receive several items.
Here are the main drops and their approximate chances:
- Haki Color Reroll – 60%
- Race Reroll – 40%
- Trait Reroll – 32.5%
- Malevolent Key – 30%
- Boss Ticket – 30%
- Dungeon Key – 20%
- Cursed Finger – 20%
- Dismantle Fang – 8%
- Sukuna Collar – 4%
- Curse King Title – 4%
- Crimson Heart – 2.5%
Since Crimson Heart has the lowest drop rate, it may take many attempts before you finally obtain one.
Materials Needed for Sukuna Spec
Once you obtain a Crimson Heart, you can start working toward unlocking the Sukuna Spec.
To begin the process, go to Shibuya Station and talk to the Sukuna Trainer NPC.
Before receiving the quests, you must gather the following materials:
- 1 Crimson Heart
- 6 Cursed Fingers
- 3 Dismantle Fangs
- 5,000 Gems
- 1,250,000 Gold
Both Cursed Fingers and Dismantle Fangs are also dropped by the Sukuna boss, so farming the boss repeatedly helps collect everything you need.
Sukuna Spec Quest Requirements
After collecting the materials and speaking to the trainer, you’ll receive three quests.
Quest 1 – Damage Requirement
Deal a total of:
35 million damage
This can be completed by fighting bosses or enemies repeatedly.
Quest 2 – PvP Kills
Defeat:
25 players
This quest requires PvP combat.
Quest 3 – Boss Kills
Defeat the Sukuna boss 15 times.
If you’re already farming Crimson Heart, you will likely complete this quest naturally during the grind.
Sukuna Spec Ability Showcase
The reason so many players farm the Crimson Heart is because the Sukuna Spec is extremely powerful.
Some of the damage values include:
- M1 attacks: over 206,000 damage
- Z ability: around 57,000 damage
- X ability: nearly 1 million damage
- V ability: more than 1.6 million damage
The spec also includes a buff ability that increases Sukuna skill and M1 damage by 25% for 10 seconds.
If held instead of tapped, the same ability turns into a regeneration skill, restoring health for about 6 seconds.
This combination of damage and survivability makes Sukuna one of the strongest builds in the game.
Fastest Way to Farm Crimson Heart
To farm the item efficiently, players usually stay at Shibuya Station and defeat Sukuna every time it respawns.
Because the boss spawns every 7 minutes and 30 seconds, the best strategy is simply repeating the fight continuously.
You’ll likely collect Cursed Fingers and Dismantle Fangs during this process as well, helping you complete the other requirements at the same time.
The Crimson Heart may have a low drop rate, but the reward is worth the grind. Unlocking the Sukuna Spec gives players access to extremely powerful attacks and strong survivability skills.
If you plan to farm the item, stay near the Sukuna spawn, defeat the boss whenever it appears, and eventually the Crimson Heart will drop.
With enough patience and consistent farming, you’ll have everything needed to unlock one of the most powerful specs in Sailor Piece.