Ryugyeong Hoegwan Gwanghwamun is a naengmyeon restaurant on the first basement floor of Gran Seoul near Jonggak Station in Seoul, serving Pyongyang naengmyeon and Pyongyang sonmandu. The noodles are made in-house and served in a broth with a strong meat aroma, in mul naengmyeon, bibim naengmyeon, and deulgireum naengmyeon versions. Reservations are required at lunch, and arriving at 11:40 without one means a 15-minute wait. There are many rooms for private dining, while service is rushed and the staff's tone is brusque.