A red-haired, golden-eyed, Saber Class, Pseudo-Servant, inhibiting the body of Emiya Shirou. Senji Muramasa is a swordsmith from Kuwana of the Isle Province, whose title was Uemon-no-jou during the Bunki Era of Japan. He is considered to be the founder of the swordsmith school famed for forging the sharpest swords of the Warring States period of Japan. His Noble Phantasm is Tsumukari Muramasa which reproduces a wasteland of countless swords that scatter, with only one blade remaining.