When Moon Kong-hwi saw the scene, he thought the bottom of society had dropped out.
It was five years ago when he witnessed people engaged in hate speech in Osaka's Tsuruhashi district, one of the country's famous Korea towns. Since the vitriol came at maximum volume, what still echoes in his ears are words that raise fears.
It happened in front of JR Tsuruhashi Station. What he heard outside of the station's exit was screams such as "Go back to South Korea!" and "Get out of Tsuruhashi!" by a dozen of people who held loudspeakers and rising sun flags.