Dusk

Dusk (夕闇, Yūyami) is a blade wielded by Anjin Uzumaki, and is stated to be a family heirloom of his, most likely found on one of his trips to the ruins of Uzushiogakure. It takes the appearance of a long, straight, single-edged blade with a red and gold handle. The crossguard, instead of being circular like the average katana, has a Western cruciform handguard.

Anjin refers to his blade as being "eager for battle" or "bored." It is unknown if the sword has emotions or if it is just a quirk of speech.

Dusk can channel chakra, and is used in techniques such as Uzumaki Style: Blade of Summer to create crescent-shaped chakra blades similar to those of Samurai.