Deep beneath in the Himalayas live strange creatures known as Zero Men - an highly evolved species of squirrel with superhuman power. Zero Men once lived side by side with mankind, but they were waiting for humanity to destroy itself.
The high priest of Zero Men society has a plot to invade all other countries on Earth. He sends an agent, Lord Enma, to establish a frontline base for the Zero Men in Japan.
However, there are Zero Men who ally with human beings; one of them being Ricky, who was found and raised by humans in Japan. Together with his human friend Pit, they set out to defeat Lord Enma.
4 Volumes (Complete, by Asahi Sonorama in 1974)
4 Volumes (Bunkoban, by Kodansha in 1978)
3 Volumes (Reprint, by Chuokoron Shinsha in 1990?)
2 Volumes (Bunkoban, by Shogakukan in 1996)
2 Volumes (Bunkoban, by Shogakukan in 1998)
2 Volumes (Bunkoban, by AKita Shoten in 2007)
7 Volumes (Reprint, by Kin no Hoshi-sha in 2008)
2 Volumes (Bunkoban, by Kodansha in 2011)
3 Volumes (Genteiban, by Shogakukan in 2011)
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