Na Seungjun Hamheung Naengmyeon is a neighborhood naengmyeon restaurant in Seoul that serves Hamheung-style naengmyeon and donkatsu together. It brings out naengmyeon, including hoe naengmyeon, along with donkatsu sauce. At lunch, office workers from the surrounding area eat there, and there is an underground parking lot. The donkatsu sauce is on the greasy side.