Nisemono no Renkinjutsushi

In the city-state of Orihalconia, where alchemy and magic are deeply woven into everyday life, a reincarnated man named Paracelsus makes a modest living as an alchemist while concealing his powerful cheat skill. One day, however, he forms a contract with Nora, a sorceress slave girl, and encounters Coco, an elf who has been deprived of her limbs and all of her senses. From that moment, his life begins to change dramatically. Determined to save Coco, Paracelsus begins a small act of salvation from his humble workshop. But what starts as a personal mission soon grows into a conflict involving alchemy, sorcery, the cosmos, and even the gods themselves— A story packed with "everything fantasy has to offer" is about to begin! (Source: Official Website, translated)

Alchemy