Yeah, it's interesting to hear about the differences too, like Chilsoek in Korea is really similar, but has more to do with the harvest season than Tanabata does. It's such a simple but powerful story.
@yurirei The series related to Non Non Biyori is actually TokoToko which is a one-shot at the end of this manga. I'm working on translating it actually, should be out in like a month or two hopefully.