Soul Metal (ソウルメタル Sōru Metaru) is the ore that Makai Armors and weapons are made from. It is an unusual metal that is forged from plant material from the seeds of the Horror Zedom. The metal reacts to its wielders strength, thoughts and will to enhance their capabilities. It is impervious to conventional human weaponry and those who are untrained in using it get burned by touching it. While very strong, the metal can be damaged or break by powerful excessive force such as the crushing pressure of a large object.