Fire Manipulation (炎熱操作 en'netsu sōsa, lit. "Sweltering Heat Operation") is an Extra Skill / Intrinsic Skill used by Shizue and Ifrit; eventually, Rimuru, Benimaru, and Kurobe gain access to this Skill as well.
- It allows the user to manipulate the element of fire.
- It can be used to cloak a weapon or target in a fire for added effect.
After defeating Ifrit, Great Sage fused Fire Manipulation with the Extra Skills Water Manipulation and Combustion via Unique Skill Deviant, resulting in Extra Skills Dark Flame and Molecular Manipulation.