Re: "… according to a report by Japan’s Nikkei."
I'm sorry, you've lost me.
"the Japanese truly love the North Koreans!": I'm guessing this is sarcasm, given the dog and cat comparison and that it's wrong, but then you say:
"You could not get a more unbiased source.": Did you mean a "more biased source"? Or was that sarcasm too? If both were sarcasm, it sounds weird to me.
By the way, it's not really fair. Japan and North Korea don't recognize each other and frequently argue (not really bias on Japan's part as North Korea has this nasty habit of shooting missiles at them). Still, there are countries that have worse relations with them, including the U.S., France, Taiwan, and places like that. Japan also contains a surprisingly high number of pro-Pyongyang organizations, although they are operated primarily by a small subset of ethnic Koreans and don't speak for Japan as a whole or the Korean community there.