As the Killing Game began, Byakuya was extremely cold and dismissive towards the other students, making his dislike to them known and stating that he would not cooperate with them. He did not trust any of the other students, assuming any of them could be plotting a murder. Byakuya and his siblings were forced to battle against one another to become the next head of the family, and Byakuya was the last one standing, the first time in the history of the Togami family that the youngest male had won