JOONGANG ILBO]   Around 7:30 a.m. on a recent Thursday, a sharply dressed man in his 40s strolled into a buffet restaurant of a hotel in Yeouido, western Seoul, with the ease of a regular.

By the time you walked back from the buffet to your table, the dumplings were cold ... This was not a luxury dining experience. This was a Sweet Tomatoes hiding in a trench coat.