Hirokawa leads a parasitic cell that includes members like Reiko and Goto. The group's main goal is straightforward: gain political influence to establish safe houses where they can hunt, kill, and consume humans without interference. He successfully runs for mayor of East Fukuyama City, a town of about 500,000 people near Shinichi's home, winning on an environmental platform that appeals to local concerns.
What sets Hirokawa apart from other parasites is his ideology. He's a true believer in radical environmentalism—not just using it as cover, but genuinely convinced that parasites exist to control human overpopulation. In his view, they're simply the next step in the food chain, doing what nature intended. That zealotry makes him particularly dangerous.
Content compiled by AnimeList.moe from publicly available sources.
