The Thunderous Celestial Metal
Boom Steel is one of the many special metals of Isekai, falling into the category of Celestial Metals. Harnessing the power of thunder, this metal is one of the most dangerous to gather and utilize as even the smallest bump can set off the metal and create chaos. Even so, this metal is useful for weapons due to the properties the metal grants the weapon.
One of the Celestial Metals, Boom Steel is one of the many special metals of the world but has a few properties that set it apart from the rest. While similar in appearance to gold, this metal is much lighter and extremely volatile if not handled correctly. A simple strike, no matter how light, can set off a thunderous crash that is devastating to all that are close, oftentimes with a power similar to dynamite.
Even with its destructive power, this metal is useful for a variety of crafting, often being turned into oversized weapons. Blacksmiths and Metallurgists will create weapons that are two or three times the size of a standard weapon as Boom Steel is so light. Armor made from this metal is unheard of as while it is useful in weapons, armor made from Boom Steel is far too volatile to be useful.