You teleport to Slime Island, the Slime Key Crafter standing under a low-thatched roof, and a small quest window nags you: seven pieces, in order. Your cursor hovers over the portal and you feel the tiny panic that comes when a clear path hides a dozen small traps. I traced every island, learned the exact spots, and saved you the aimless running around.
How to Start the Slime Quest in Sailor Piece
Most players assume any island NPC hands out quests; here one specific NPC does the heavy lifting. Go through the nearby teleport portal to Slime Island and speak to the Slime Key Crafter NPC. You’ll find them in front of the Sailor Piece Skill Tree NPC, near the cluster of small huts. Once you accept the quest, the HUD will show a prompt: collect seven Slime Pieces in order. Keep that order—missed sequence means the quest won’t progress.
Sailor Piece Slime Pieces — where they hide
Look at any server map and you’ll see how small details are the difference between minutes and hours of searching. Below I’ve mapped each Slime Piece in the exact order the quest requires. Follow them in sequence and you’ll avoid wasted teleports and backtracking.
Slime Piece #1 — Desert Island
Spawn on Desert Island, dash away from the portal toward the market stalls and Desert Bandit NPCs. There’s a massive fossil nearby; slip under it and you’ll find Slime Piece #1 tucked by the skull. Press and hold E to pick it up.

Slime Piece #2 — Snow Island
Teleport to Snow Island and head behind the igloos near the Artifact NPCs. Find the tree that sits close to where a Hogyoku Fragment spawns; check the base of that tree and hold E to collect Slime Piece #2.

Slime Piece #3 — Starter Island
The Starter Island hides this one obvious-to-miss spot: climb the hut roof behind the Thief Boss Quest NPC and walk out to the branch. Stand on the branch and press E to claim Slime Piece #3.

Slime Piece #4 — Jungle Island
On Jungle Island you need vertical movement; spam your jump button to reach the lone watch tower to the right of the portal. The piece sits on the tower’s top—grab Slime Piece #4 and don’t fall.

The quest’s pattern sits folded into the map like an old paper treasure map, each crease pointing to the next place.
Slime Piece #5 — Shibuya Station
Teleport to Shibuya Station, run to the far end where the Limitless Sorcerer boss hangs out. Dash right to the corner of the final building block and you’ll spot Slime Piece #5 tucked against the wall.

Slime Piece #6 — Hollow Island
On Hollow Island head behind the Manipulator sword boss toward the twin chimneys. The piece sits at the base between those two towers—tight, easy to miss, but right where you expect it not to be.

Slime Piece #7 — Shinjuku Island
Spawn on Shinjuku Island, move to the far right end and scan for a slanted dead tree. The final Slime Piece sits on a branch near the top—press E and return to the Slime Crafter.

What happens after collecting all seven Slime Pieces?
Return to the Slime Crafter NPC on Slime Island and interact to finish the quest. That NPC will grant you the ability to craft Slime Keys and will expose the boss summoner NPC near the ruined colosseum. With the keys you can summon the Demon Lord (Rimuru) and farm Slime Cores used for ascension.
How to get Slime Shards in Sailor Piece?
Slime Shards drop from Slime Warrior NPCs on Slime Island. Defeat those mobs, collect shards, and craft Slime Keys at the Slime Crafter. If you prefer community help, check Sailor Piece guides on YouTube or join a Roblox-focused Discord—many creators on Moyens I/O and other channels post short route videos that save time.
Rewards and next moves
Every server I’ve tested shows the same payoff: keys, boss runs, and ascension material. Crafting Slime Keys consumes Slime Shards; use them at the boss summoner a short walk from the Slime Crafter. The Demon Lord fight drops Slime Cores that you’ll need for later ascensions. If you’re farming, consider coordinating runs on community Discord groups or watching short clips on YouTube creators who tag runs with spawn times; that saves grief and server-hopping.
If you’ve followed the route above, you shave off messy guesswork and get to the good part: crafting and fighting. Will you rush Rimuru solo, or coordinate a full run with friends and content creators?