Setunano Takemaru is the secondary antagonist of the third InuYasha movie Swords of an Honorable Ruler. He was a samurai who fell in love with Inuyasha's mother, Izayoi.
He was voiced by Jonathan Holmes.After learning she was to bear a hanyo child, he took it upon himself to kill her. However, Inuyasha's father arrived and revived her. He cut off Takemaru's arm and later dueled to the death with the latter in the collapsing castle. Years later, Sounga revived him as a demonic being reminding him of his hatred towards Izayoi for taking Inuyasha's father, a demon to bear her child. Using the cursed sword, he raised an undead army to do battle with Inuyasha and Sesshomaru.