Ittousai Itou is a master swordsman known for his unmatched skill and ruthlessness in the Sengoku Bushouki MURAMASA series. He is a wandering samurai, feared and respected by many due to his formidable abilities with the sword. Throughout the series, Ittousai plays the role of a formidable adversary and a mysterious figure whose past and motivations are slowly unveiled. His complex character brings depth to the narrative, as his encounters with other characters often lead to intense and captivating battles that test their resolve and skills.