What Slime? It's Clearly a Nanoprinter.

[From picking up trash to mechanical ascension, all you need is billions of slimes. In order to avoid the great fortune driven by his master, Rayleigh was thrown into the sewer without a cover and came to the world of sword and magic. When he woke up again, he was penniless and his equipment had been stripped away by the goblins. The only honor he had was the ability to forcefully control the slimes. Other people's slimes will act cute and eat. His slimes can tear apart homes. Precisely, they can: ——Decompose all substances in contact with; ——Restore all decomposed materials; - freely shaped according to his will. Iron, copper, nickel, rubber, leather... As the restoration list grew longer and longer, Reilly suddenly realized: What kind of slime is this? They are clearly a group of living nanoprinters! So, while others were still practicing swordsmanship and studying magic, he had already begun to use slime to analyze ores, mix alloys, build equipment, make mechanisms, research alchemy, and recreate ancient creations, gradually climbing up his own technology tree. From a knife, a simple crossbow, to magic machinery, war weapons... From picking up slimes by the river to analyzing ancient ruins buried across the continent. When the ancient civilization reawakened, everyone finally discovered—— What they faced was never a slime envoy, but an industrial civilization that was slowly starting up. [Alternate World] [Adventure Exploration] [Slime Technology Tree] [Industrial Manufacturing] [Material Science] [Pseudo DND]