The Ghoul Update is simple once you follow the right order. The trap is wasting time farming bosses before stacking keys, or missing the hidden NPCs on Starter Island and Isolation Island. Here's the clean route: Blood Flower Quest ➔ Isolation Island ➔ Reaper Keys ➔ Black Reaper Boss ➔ Black Reaper Melee ➔ F Move Questline.

• Sailor Piece Ghoul Update Progression Route
• Blood Flower Quest Location: How to Unlock Isolation Island
• Blood Flower Quest Requirement
• Isolation Island: What to Farm First
• Isolation Island Priority List
• How to Get Black Reaper in Sailor Piece
• Black Reaper Requirements
• Best Black Reaper Farming Loop
• Reaper Keys Farming Strategy
• Black Reaper F Move Questline
• F Move Requirements
• Fastest Black Reaper Mastery Farm
• Starter Island Quake Swap Method
• Raid Method
• Black Reaper Skills: Damage and Use Cases
• Practical Skill Advice
• Ghoul Outfit Stats
• Common Mistakes to Avoid
• FAQ
• How do you start the Blood Flower Quest in Sailor Piece?
• Where is the Black Reaper NPC?
• How do you get Reaper Keys?
• What do you need for Black Reaper melee?
• How do you unlock the Black Reaper F move?
• Summary

↖ Sailor Piece Ghoul Update Progression Route

Use this order. Do not skip steps.

This is the fastest path because every farm feeds the next unlock.

↖ Blood Flower Quest Location: How to Unlock Isolation Island

The Blood Flower Quest NPC is on Starter Island.

It is not placed in the most obvious spot. Check upper paths, side areas, and spots slightly away from the normal spawn route.

↖ Blood Flower Quest Requirement

If you cannot reach the new island, this is the wall. Finish this first before thinking about Black Reaper.

↖ Isolation Island: What to Farm First

Once you reach Isolation Island, do not rush the boss.

Farm regular island NPCs first. They drop Reaper Keys, and those keys are required to spawn the Black Reaper Boss.

↖ Isolation Island Priority List

The real bottleneck is usually Reaper Keys, not boss damage. Stack keys early.

↖ How to Get Black Reaper in Sailor Piece

To unlock Black Reaper melee, find the Black Reaper NPC on Isolation Island.

Important detail: the NPC is located on a wall. Many players run past it because they only check ground-level NPCs.

↖ Black Reaper Requirements

All materials come from the same boss. That keeps the route clean.

↖ Best Black Reaper Farming Loop

1. Farm NPCs on Isolation Island.

2. Stack Reaper Keys.

3. Spawn Black Reaper Boss.

4. Farm until you get all materials.

5. Go to the wall NPC.

6. Exchange materials for Black Reaper.

If you only bring a few keys, your grind becomes stop-start garbage. Farm a big batch first.

↖ Reaper Keys Farming Strategy

Reaper Keys drop from NPCs on Isolation Island.

The drop rate is not something you should trust for a quick run. Treat key farming as its own phase.

For the F move questline, you need 25 Medium Black Reaper Boss kills. Plan around 50 Reaper Keys so you do not keep breaking your route.

↖ Black Reaper F Move Questline

After unlocking Black Reaper, find the Reaper Master NPC on Isolation Island.

This starts the questline for the F move.

↖ F Move Requirements

Reward:

• Unlocks Black Reaper F move
• Gives around +30% Black Reaper damage

This questline is worth it. You are not just getting one move. You are boosting the whole melee.

↖ Fastest Black Reaper Mastery Farm

The slowest part for most players is 150 mastery.

The best method is kill-credit farming.

↖ Starter Island Quake Swap Method

1. Go to Starter Island.

2. Stand between two enemy groups.

3. Use a strong AoE skill like Quake Sea.

4. Quickly switch to Black Reaper.

5. Let the kills count toward Black Reaper mastery.

6. Repeat until 150 mastery.

This works because weak mobs die fast, and kill volume matters more than enemy strength.

↖ Raid Method

Raids are better if you want active farming.

If you want pure efficiency, use Starter Island. If you hate standing still, run raids.

↖ Black Reaper Skills: Damage and Use Cases

Black Reaper has strong damage, but some moves are slow. Use the big skills when enemies are locked, grouped, or bossing.

The F move is the payoff. Big range, big damage, long cast. Do not throw it randomly at mobile targets.

↖ Practical Skill Advice

• Use Z for consistent farming.
• Use X and C for reliable burst.
• Use V only when the target will stay in place.
• Use F for bosses or grouped enemies.
• If V/F keep missing, your timing is bad, not the melee.

↖ Ghoul Outfit Stats

The Ghoul Outfit is also a real stat upgrade, not just cosmetic.

You gain +10% defense and +13% damage while keeping the same damage reduction. Use it unless your current accessory has a better special effect.

↖ Common Mistakes to Avoid

Most failed routes come from poor prep. Stack resources, then push progression.

↖ FAQ

↖ How do you start the Blood Flower Quest in Sailor Piece?

Go to Starter Island and find the hidden Blood Flower Quest NPC. The quest requires 6 Blood Flowers and unlocks access to Isolation Island.

↖ Where is the Black Reaper NPC?

The Black Reaper NPC is on Isolation Island, placed on a wall. Check vertical surfaces and corners instead of only ground-level NPC spots.

↖ How do you get Reaper Keys?

Farm regular NPCs on Isolation Island. They drop Reaper Keys, which are required to spawn the Black Reaper Boss.

↖ What do you need for Black Reaper melee?

You need 1 One-Eyed King Title, 20 Black Shards, 12 Reaper Remnants, 5 Ring Kaku Cores, and 2 Ghoul Essence. All come from the Black Reaper Boss.

↖ How do you unlock the Black Reaper F move?

Talk to the Reaper Master NPC on Isolation Island. Complete three tasks: kill 25 Medium Black Reaper Bosses, get Ghoul Bloodline, and reach 150 Black Reaper Mastery.

↖ Summary

The best Ghoul Update route is:

Blood Flower Quest ➔ Isolation Island ➔ Reaper Keys ➔ Black Reaper Boss ➔ Black Reaper Melee ➔ F Move Questline ➔ 150 Mastery

The main grind is not complicated. It is resource control. Farm Reaper Keys first, kill the boss in batches, save Bloodline Stones for Ghoul Bloodline, and use Starter Island or raids for mastery.

Once finished, Black Reaper becomes a strong melee with reliable farming tools, heavy boss damage, a powerful 1T F move, and an extra +30% damage bonus from the mastery questline.