Nisemono no Renkinjutsushi

ニセモノの錬金術師

In the city-state of Orichalconia, a world where alchemy and magic are deeply rooted in the lives of the people, the reincarnated Paracelsus ekes out a living as an alchemist while hiding his "cheat skills." However, his life changes dramatically one day after he enters into a contract with a shaman slave-girl, Nora, and later meets Coco, an elf who has lost all four limbs and five senses. To save Coco, what began as a rescue attempt in a small workshop gradually escalates into a battle involving alchemy and sorcery, space and even the gods themselves— (Source: Kadokawa)