This is a reportage of Zaitokukai, a recently-emerged right nationalist organization.
Zaitokukai are against what they call "special privilege" to resident Koreans in Japan and make protest demonstrations with hate speech. They announce officially their members are over 10,000.
They are unique in that they have expanded through the Internet and most of the members have not had any experience in other political organizations. Because of that, they hate to be called "right-wing" and emphasize that they are "citizens."
The author describes through intensive interview how Zaitokukai have attracted so many ordinary people, biographies of the executives, problems caused by them, and so on.
One fact that interests me is that there are members who have Korean friends or even have a Korean grandfather. The author argues that not all members necessarily have hatred against Koreans, rather they simply feel comfortable for what Zaitokukai bring to them because they function as pseudo family.