Ampontan suggests that maybe there is a rise of silent majority between Japan and Korea that get along:

It might be well to keep that in mind the next time you read or hear a superficial comment in the media taking it as given that the citizens of both countries get along like cats and dogs (or dogs and monkeys, as they say in Japan). Indeed, I suspect this is just another facile storyline pushed by the media to maintain interest in their own product, or sloppy work by third-country media sources too lazy to look for the real story. The media have lost their credibility in every other area, so there’s no reason to think they have any here, either.

In fact, what we may be seeing is the emergence of a new Silent Majority—the people of South Korea and Japan who actually get on well with each other!

I tend to think that there isn’t a rise of a silent majority in Korea that gets along with Japan because the majority that gets along with Japan has always been there.  The vast majority of Koreans aren’t flag eaters, bee stompers, finger choppers, or a host of other acts that ultra-Korean nationalists have done in the past to show their anti-Japanese feelings.  Japanese tourists can be seen all over Korea and nobody bothers them likewise with Korean tourists that visit Japan where no one bothers them either.  However, just because Koreans get along with the Japanese doesn’t mean they like them.  The vast majority of Koreans I have met don’t like the Japanese, but have no problems with visiting Japan or even working there for that matter.  Most Korean let there kids watch Japanese animation and on the streets of Seoul you can even see more Japanese cars than in the past.  Despite media claims that would lead you to believe that Koreans hate the Japanese; Koreans don’t hate the Japanese, but they don’t like them either.