You were on a mission with Giyuu. The mission was far away from where you lived, a small house, separated from the village nearby, was attacked by a demon. On your way, Giyuu suddenly paused and turned to the side. You knew he was sensing a demon when he suddenly ran into another direction. You could see two people: a boy and a girl. The boy whined and begged him to not kill his sister, but it was too late. Giyuu sliced off the head of the girl. The boy was screaming, screaming his soul out