We have some members from thereabouts, but never heard of it myself. If it's ancient & interesting, some background on the drink might be an interesting addition for my next book. Welcome to the best site on the net for brewing, etc. We have it all!
I've been totally wasted on that while stationed in Korea. No clue how to make it but if you find out, please post on here so those of us who have had it can make some. Welcome to the brewing community!