
Yes but it's usually just Mcdonalds ice cream kiosks. For the rings, I think they're in a mall, so they might be looking around there but not a the grocery part lol . I have seen jewelry sellers in a in a supermarket when we went to japan but they're fake jewelry so maybe in korea too???

I think they're in front of the bakery outside of grocery store in the mall.

Why not? They have it here in England as well, that's not strange

ok never been there so dunno that exists
Is it normal to have a McDonalds in a grocery store in Korea? http://www.mangago.zone/read-manga/killing_stalking/mf/c024/27/
Or look for a 24k ring?