Toji Nakahara (中原 冬至 Nakahara Tōji) is a rampant criminal and the man responsible for causing Kazuhito Harumi's death. He also becomes an avid reader of Kirihime Natsuno's book after he began squatting in Kazuhito's apartment and even fights using moves inspired by her characters using the thick books of the Seven Deadly sins series as weapons and protection. He's confronted by Natsuno and left hanging from a bridge after a battle. When Natsuno encourages Kazuhito to take revenge, he spares him instead and he is promptly arrested.
