Here's a pair of stories that stayed with me long after I read them. I went through a spurt of seeking out most anything set post-war because I was so interested in the characters that I wanted to see how they'd be in non-Korean settings. From all the fics I read with that in mind, this version has kind of become my personal canon. The characters are 10 years removed from the show, but they are very much so the same people. It's lovely and heartbreaking.

Title: Ten Years (http://www.fanfiction.net/s/1702001/1/Ten_Years) and Hello and Goodbye (http://www.fanfiction.net/s/1718390/1/Hello_and_Goodbye)
Author: TakenHawkeye
Rating: K for both (by ff.net standards)
Warnings: Major character death. But so worth it anyway.