Nozomi Kayama  

A scientist working at a pharmaceutical company who used military research initially developed by Nijū Mensō to create super-soldiers similar to "Human Tanks." She and her partner, Takashi Tsuya, experimented on themselves and enhanced their bodies, but they couldn't achieve the intended results. They sought a cure from Chiko, believing that she had the research they needed. Dr. Tsuya died due to his body losing control during the experiments, while Dr. Kayama escaped. She warned Chiko about being approached by many people seeking Nijū Mensō's legacy. Dr. Kayama continued searching for a cure and eventually saved Ken from Kakiharas agents. She recognized that they were advanced products of research to create human tanks by Seiji Tamiya, and worked with Ken to defeat them.