On Feb. 24, 2013, Osaka's Tsuruhashi district, home to one of Japan's largest concentrations of ethnic Koreans and in recent years a major tourist destination, was the scene of a shocking incident.

The anti-Korean group Zaitokukai had organized a demonstration in the area, shouting ethnic slurs by bullhorn. Most of those participating were men. But then a 14-year-old girl stepped up, shouted that she hated all Koreans and said her group would massacre all of the Koreans in Tsuruhashi if they did not leave Japan.

The girl's comments shocked the world. A YouTube video of the incident was translated into English and many other languages and uploaded, while the Osaka media gave it limited coverage and politicians expressed regret, but little else.