The Ghoul Update in Sailor Piece introduces Isolation Island, a brand-new area filled with fresh enemies, rewards, and the powerful Black Reaper fighting style. However, players cannot access the island immediately after updating the game.
To unlock the new area, you first need to complete the Blood Flower Quest, a scavenger-style mission spread across the Second Sea.
Here is exactly how to start the quest and unlock Isolation Island.
Sailor Piece Isolation Island Unlock Guide
Isolation Island is the newest zone added in the Ghoul Update. The island contains several pieces of endgame-style content, including:
- Black Reaper progression
- New enemies
- Additional NPCs
- Ghoul-themed rewards
- New cosmetics
- Aura unlocks
- Extra quests
Before you can sail there, the game requires completion of the Blood Flower Quest.
Blood Flower Quest
The Blood Flower Quest is the key requirement for entering Isolation Island.
After starting the mission, players must collect:
- 6 Blood Flowers hidden around the world
The flowers are spread across different islands in C2, similar to previous progression quests added to the game.
Quest NPC
The Blood Flower NPC is located on Starter Island C2.
NPC Location
The NPC is intentionally hidden away from the main pathways, making it easy to overlook during normal exploration.
Head toward the far side of Starter Island C2 and search near the upper edge section of the map. The quest giver stands in a tucked-away corner instead of the central quest area.
Once you find the NPC, interact with them to begin the Blood Flower hunt.
Blood Flower Mechanics
The quest works similarly to older progression systems such as the Hogyoku Fragment questline from the First Sea.
How It Works
- Blood Flowers are scattered across C2
- Players must manually locate each one
- Collecting all six unlocks Isolation Island
- Flower locations appear to be the same for every player
Unlike randomized fragment systems, the flowers use fixed spawn locations, making route memorization much easier once discovered.
Blood Flower Locations
The six Blood Flowers are hidden across several islands in C2.
Confirmed Areas
Players have discovered flowers in locations including:
- Bazar Island
- Starter Island C2
- Slayer Island
- Blue Planet
- Punch Island
- World 2 Portal Area
Each flower must be collected individually before the quest completes.
Unlocking Isolation Island
After gathering all six Blood Flowers, the restriction preventing access to Isolation Island is removed.
You can then travel directly to the new island and begin progressing through the Ghoul Update content.
This unlocks access to:
- Black Reaper melee
- New boss encounters
- Ghoul rewards
- Additional questlines
- Aura drops
- Mastery progression content
Black Reaper Connection
Isolation Island is especially important because it is tied directly to the Black Reaper spec.
Players looking to unlock the full moveset, including the F ability, will likely need to continue progressing through the island’s questlines after entering the area.
Tips Before Starting
The Blood Flower hunt can take some time, especially if you do not know the locations beforehand.
Increase Mobility
Bring movement-focused builds or fast travel abilities to reduce sailing time between islands.
Use Route Planning
Following a planned island route helps avoid unnecessary backtracking during the flower hunt.
Search Carefully
Some flowers are hidden near corners, ledges, or lower sections of islands instead of obvious pathways.
Isolation Island is currently one of the biggest progression additions in Sailor Piece, mainly because of its connection to Black Reaper and the new Ghoul content. While the Blood Flower Quest can initially feel confusing due to the hidden NPC and scattered collectibles, the quest becomes much easier once you know where to begin.
After collecting all six flowers, players can finally start exploring the newest island and everything included in the Ghoul Update.