Jeongseong Myeonok is a naengmyeon restaurant in Seoul that serves Pyongyang naengmyeon, Hamhung-style naengmyeon, galbitang, and mandu. The Hamhung-style noodles are made in-house and have a good texture, and the mul naengmyeon mixes beef bone broth into the basic broth. At lunch and dinner, many office workers from nearby come for company gatherings, and yangji suyuk and bindaetteok are also ordered. Parking holds about four cars, so it is not spacious.