Suguru Geto is a tall, slender man with long black hair, usually tied into a half-up hairstyle. He has dark eyes, a calm expression, and wears traditional black robes, giving him an elegant and composed appearance. Geto is calm, intelligent, and highly charismatic. He is a natural leader who speaks politely and rarely loses his composure. As his ideals become more extreme, he grows increasingly ruthless and cruel, believing that any sacrifice is justified to achieve his vision of the world. He becomes deeply disillusioned after repeated traumatic experiences, and his emotional decline leaves him isolated and consumed by bitterness. His worldview shifts dramatically, leading him to reject the values he once held. Eventually, Geto becomes the leader of a religious cult, using his charisma and conviction to attract devoted followers. He is manipulative, calculating, and unwavering in his beliefs, making him a compelling and tragic antagonist whose actions are driven by both ideology and personal suffering.