Watch this movie. Seriously.
We see at the very beginning introduction to the situation of zainichi in Japan. The protagonist, Sugihara, is zainichi. Going to North Korean School in Japan, he decides one day to transfer to a Japanese high school. Of course his background is known, so we may suspect he will become the victim of ijime.
But there is one thing his oppressors don't know. Sugihara's father trained him in boxing since Sugihara was a kid. He sometimes uses this to beat his son senseless.
So, everyone who wants to pick up a fight with Sugihara, ends up in blood.
That's good, I like fights. Fights in self-defence are not violence. But to make things worse, he starts seeing a Japanese girl, Sakurai.
First half of the movie is like a collage of sharp cuts, dynamic angles and montage. Then the story deepens. Not to the boring level, though. Isao Yukisada handles this very, very wisely. This crucial point is the moment of the death of Sugihara's friend from times in Korean school. To be honest, his only friend.