Sasuke Uchiha, a prominent character in the "Naruto" series, wields a sword named Kusanagi. Kusanagi is a legendary sword associated with Japanese folklore and mythology. It is characterized by a long, straight blade and a distinctive hilt and guard design.

In the series, Sasuke acquires the Kusanagi sword during his association with Orochimaru, a powerful shinobi. Sasuke's Kusanagi sword holds significance within the story, representing his connection to Orochimaru and his own growth as a skilled fighter.

It's worth noting that the Kusanagi sword wielded by Sasuke is a unique weapon within the context of the "Naruto" series and may have distinct abilities and characteristics specific to the fictional world.