Tachi was a type of amorphous metal found on Tsuki II, a moon that orbited Kazoku in the Kazokan system. Found in huge deposits within the cave systems on the moon, Tachi was mined by the Shogunate Commission for the creation of Kishi weaponry, as the properties of this metal made it ideal for that purpose, resulted in the forging of swords.
Behind the scenes[]
Tachi is a type of traditionally made Japanese sword (Nihonto) worn by samurai of feudal Japan.