Hiromi Kikai

Under Professor Furuchi, Kawano has been engaged in the development of a new vaccine against the unidentified substance which fell from outer space. People infected with it begin to attack other human beings for blood. The one and only way to prevent the attacks of the infected people is getting vaccinated and becoming one of them. Kawano has volunatrily chosen to be infected for absorbing in the research. His girlfriend Taeko is worried about him and visits the laboratory. She tries to rescue Kawano in cooperation with his friend Sawamura, a medical practitioner in town: meanwhile, the mysterious black substance has started pouring down from the sky...

Detective Nishi is relieved from a stakeout to visit his sick wife in hospital. He is informed that she is terminally ill, and is advised to take her home. During his visit, a suspect shoots one detective dead and leaves Nishi's partner, Horibe, paralyzed. Nishi leaves the police force to spend time with his wife at home, and must find a way to pay off his debts to the yakuza.

Shinji and Masaru spend most of their school days harassing fellow classmates and playing pranks. They drop out and Shinji becomes a small-time boxer, while Masaru joins up with a local yakuza gang. However, the world is a tough place.

Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.