- Voice Actor (CV)
- Nijirou Murakami
- Gender
- Male
- Role
- Protagonist
- Identity
- A high school student turned cybernetic weapon unit, serving as the story's central antagonist
Personality
Ruthlessly cold-blooded
Extreme egotism
Fiercely protective of loved ones
Antisocial tendencies
Once an ordinary high schooler, Hiro Shishigami's life was irrevocably altered when an alien encounter forcibly transformed him into a cybernetic weapon. Embracing random acts of killing as a means to feel truly alive, he embodies a chilling antisocial worldview that places no value on human life. Yet beneath this brutal exterior lies a startling contradiction — an intense, almost obsessive tenderness toward his mother and closest friend. Positioned as the ideological antithesis to protagonist Inuyashiki, Hiro represents a tragic villain perpetually torn between indiscriminate destruction and an unwavering desire to protect those he holds dear.