Zabuza Momochi is a feared shinobi from Kirigakure, known as the 'Demon of the Hidden Mist.' He is a former member of the Seven Ninja Swordsmen of the Mist and wields the massive sword Kubikiribōchō. Zabuza is introduced early in the 'Naruto' series as an antagonist during the Land of Waves arc. His ruthless demeanor and deadly skills make him a formidable opponent, but his complex relationship with his companion Haku reveals a more nuanced and tragic side to his character.