Gone from This World - S1.E12

Having finished his special training at Camelot, Takeshi returns home to find Gekkou emerging from their house with Twilight gripped in his right hand—dripping with blood. The nightmarish vision Takeshi had once seen through Twilight's power has finally come to pass. Gekkou claims that he struck down their mother in self-defense. Unable to suppress his rage at seeing his loved ones hurt any longer, Takeshi finally finds the heart to battle Gekkou decisively.