Kakashi Hatake, a character from the anime and manga series Naruto, primarily uses a sword called "Kubikiribōchō," also known as the "Decapitating Carving Knife" or the "Executioner's Blade."

The Kubikiribōchō is a massive sword with a large, curved blade and a serrated edge. It has a distinct appearance with a semi-circular handguard and a leather-wrapped hilt. The sword possesses a unique ability: it has the power to regenerate and heal itself by absorbing the blood of those it cuts, making it a formidable weapon.

Kakashi obtained the Kubikiribōchō during a battle with Zabuza Momochi, a rogue shinobi, in the early arcs of the Naruto series. He used the sword on various occasions throughout the series, displaying his skill in swordsmanship alongside his renowned use of the Sharingan, a powerful eye technique.