Masaru Aso was the lab assistant of geneticist Doctor Mochizuki, used as one of his experiments related to the creation of the Neonoid, enabling him to transform into a grasshopper-like being called Kamen Rider ZO. He fled into the mountainside and went into a coma before he was awakened by a telepathic call two years later with an unconscious urge to protect Hiroshi Mochizuki, the son of Doctor Mochizuki.
(Source: Kamen Rider Wiki)

asou masaru
Characters
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Asou Masaru
Main
Masaru Aso was the lab assistant of geneticist Doctor Mochizuki, used as one of his experiments related to the creation of the Neonoid, enabling him to transform into a grasshopper-like being called Kamen Rider ZO. He fled into the mountainside and went i...
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Kotaro Minami
Supporting
After being kidnapped by the cult Gorgom on the night of their 19th birthday, stepbrothers Koutarou Minami and Nobuhiko Akizuki were submitted to a cyborg surgery with the purpose of becoming the candidates for the next Gorgom Creation King. Both of them ...

