Hiro Shishigami

Hiro Shishigami is the main antagonist who eventually becomes a deuteragonist. He is a high school student and a mass murderer after becoming a cyborg. Hiro is a tall, young man with short navy hair that has bangs hanging on the right side, deep brown eyes, he is shown to be at least of medium height and he has a particularly pretty face to the point that he attracts a lot of attention from females around him.

Although Hiro appears to be a kind and polite boy, he was a selfish person who uses his cybernetic power to murder people that annoy him, or slaughter families to make him feel alive. He believes that with his new power, he was now above everyone else, and no one on the planet can stop him. However,...