Hiro Shishigami

Hiro Shishigami (獅子神 皓, Shishigami Hiro) is a high school student and the main antagonist.

Appearance
Hiro is a handsome young man with short, navy hair and black-brown eyes. He has a particularly pretty face, to the point that he attracts a lot of attention from females around him. He is also shown to be at least of medium height, potentially tall.

Personality
Although he appears kind and polite, Hiro is a sociopath who uses his cybernetic power to murder people that annoy him, or slaughter families to make him feel alive. He has a God Complex and believes that with his new power, he is now above everyone else, and no one on the planet can stop him. However, despite his homicidal desires, Hiro is not completely monstrous. He is shown saving and helping people at multiple points, both unprompted and also as guided by those he cares for. This suggests that Hiro has some humanity lingering in his system, as he is also shown to love his mother dearly and care for a close few around him. Although Hiro's cybernetics might contribute his sociopathy, other factors such as living with his mother in a rundown apartment and his father having another family, the frustrations of high school life, and dealing with bullies might have also be responsible for becoming the person he is now.