Like in Japan, "meal leftovers" of school lunch is becoming a social problem in Korea. Solution of both countries.

* Japan: Kids leave it because it is not tasty. We want to maintain the price as it is now. we cheer them up for not to leave any food on the plate.

* Korea: It has been proven that by using the "rainbow meal plate" invented by junior high school students, the amount of leftovers were reduced by 70%.

* Approaches which are a lot different from each other to the same problem..