How to Get Rimuru in Lineage Piece (Slime Race + Materials)

Prerequisite: Slime Race

Rimuru is race-gated: you must be Slime race — consume a Slime drop (35% from the Rimuru boss) at a 5% success rate per eat. Yes, the boss that drops the race item is the boss you’re farming anyway.

Summoning the Boss

Rimuru (50M HP) doesn’t spawn on his own: give a Slime Orb (1% from Hollows/Arrancars) to the Slime Summoner, and Rimuru replaces Sung Jin Woo on the next 90-second cycle. One orb per summon.

The Shopping List (Rimuru NPC)

• Slime race (active)
• 7 Slime Cores (10% drop)
• 1 Shizu Mask (1.25%)
• 10 Slime Essence (15%)
• 5M coins & 10K gems

Expect 15–25 boss kills for the materials, plus however many Slime eats the 5% race takes. Stock multiple orbs before each session.

Mastery

Rimuru’s Mastery chain: obtain the Demon Lord title (4% from the boss) and kill 3,000 NPCs. The race’s +5% Rimuru damage stacks with the mastery bonus.

Verdict

A solid mid-game carry — cheap coins-wise but RNG-heavy. If you’re pre-Extreme, he’s one of the better projects; late-game kits outscale him (tier list).