The duel Nichirin Cleavers of Sound Hashira, Tengen Uzui. With the immense weight of the blades paired with the versatility of a linked chain, it is said that until the battle with Upper Moon Six, any demon struck by this weapon would fall to a single blow. The words "Destroyer of Demons" (惡鬼滅殺 Akki Messatsu) appear on the side of both blades.
