Izure Saikyou no Renkinjutsushi?

An ordinary salaryman is accidentally summoned to another world and discovers there is no route back home. Given a younger body, the new name Takumi Iruma, and magical abilities, he chooses what seems like a peaceful profession: alchemy. His talent allows him to create things the people of this world rarely expect, ranging from practical everyday tools to products with extraordinary value.

Takumi begins in a remote village, gathering companions and unusual pets while learning his craft, then moves toward a larger city where both business and alchemy operate on a much bigger scale. He has no desire to become a hero or ruler, yet producing exactly what people need brings attention as quickly as profit. Every new creation pushes the man who wanted a quiet second life a little closer to becoming the greatest alchemist in a world he never intended to enter.