Suguru Geto is a complex man who undergoes a significant personality shift. He is depicted as a caring and empathetic jujutsu sorcerer, especially towards his fellow sorcerers. However, a pivotal event involving non-sorcerers causes him to view them as inferior, leading him to become a disillusioned and even disdainful character. He maintains a calm and collected demeanor, often exhibiting charisma, leadership, even as he pursues his radical ideologies.